Quality Product Development Research Articles

Traceability – A vision for now and tomorrow

AbstractTraceability has been addressed in the past from the perspective of relationships between the digital artifacts within the data and the information model of the system of interest (SoI) being developed. This paper enhances this view from a project management (PM), systems engineering (SE), and a configuration management (CM) perspective. The paper discusses what traceability is today and how it can help PM and SE practitioners meet future needs to realize the INCOSE Vision 2035 and satisfy all needs and requirements baselined for a SoI, including compliance with standards and regulations. Provenance and pedigree are two aspects discussed of how traceability enhances the management of digital artifacts from a CM point of view. This paper provides a vision of how traceability can aid PM and SE practitioners to develop quality products that deliver what is needed, within cost and schedule, with the needed quality.

Recent trends in Ayush research: A paradigm shift for developing quality products

Recent trends in Ayush research: A paradigm shift for developing quality products

Digital Twin and Generative AI for Product Development

Optimisation of the product design and development cycle is crucial for maintaining product quality and ensuring lower production costs. It is necessary to intervene at early stages to prevent future expenses. Leveraging rapid digitalisation to achieve the desired goals and bringing in ‘smart manufacturing’ will benefit industries with large-scale productions. This paper proposes a novel approach to enhance ‘design for manufacturability (DfM)’ paradigm. Integrating digital twins and generative artificial intelligence (AI), a software is proposed that not only simulates real-world environments for testing and visualisation of potential processes but also provides designs to optimise the manufacturing process, maintain cost, and enhance the product’s appeal to the target market. The proposed model uses sensors to replicate the product in a digital environment to run a simulation. Meanwhile, a generative AI model embedded in the software provides creative and effective solutions based on user requirements and market data. When incorporated into the product development cycle, this process will ensure cost efficiency and improve the time required to develop quality products, enabling quicker launches. Thus, combining these emerging technologies yields a powerful, innovative model that enhances design for manufacturability.

Data-driven implicit design preference prediction model for product concept evaluation via BP neural network and EEG

Customer preference-involved product concept evaluation is a vital stage for developing new products. One of the key factors in this stage is to mine the potential relationships between customers’ needs and technical requirements. In most new product development (NPD), design characteristics (DCs) are employed as performance indicators to describe the technical requirements of a scheme. Previous studies have focused on evaluating the degree to which a scheme meets the performance value of DCs, disregarding the relationship between DCs and potential user preferences. This oversight leads to an inability to accurately predict customer satisfaction with the candidate schemes based on their preferences. Previous research, which was aimed at ensuring the preference value of schemes by utilizing mapping data between design preference (DP) and DCs, overlooked users' psychological states and thus failed to accurately capture their cognitive preferences for the schemes. To address these issues, an electroencephalogram (EEG) data-driven, implicit DP prediction approach is proposed. The method characterizes the implicit cognitive relationship between DP and DCs by mining EEG data and utilizes a back propagation (BP) neural network to predict DP. First, a user's DP word pairs were constructed based on the approach of statistical analysis, and the best-worst method (BWM) was introduced to obtain the importance of DCs. Second, an experiment was designed based on the extracted preference word pairs to collect EEG data that reflect a user's DC preference, record the user's stimulation state toward the DCs, and label their DP based on the segmentation results of preference evaluation. Third, a BP neural network was employed to construct a preference prediction model for DCs, and the reliability of the proposed preference prediction model was validated by using the forklift design example. The prediction results further exhibited the potential association between user preferences and DCs that can be acquired by EEG data mining. The results also provide support for designers to promptly acquire design concepts that satisfy user requirements (URs), thereby enhancing the efficiency and quality of product development in a highly competitive market.

Development, transfer and validation of a HPLC-DAD method for analysis of six herbal medicines marketed in D.R. Congo: Fingerprinting and stability study

ContextPhytomedicines, also known as improved traditional medicines (ITMs), are increasingly used in the management of diseases throughout the world. While quality control widely known to be an essential tool that can ensure the efficacy and safety of health products, most ITMs lack appropriate analytical methods for their control. The aim of this study was to develop a reliable analytical method for the quality control of ITMs commonly used in the Democratic Republic of the Congo (D.R. Congo). For this purpose the method needs to be validated and transferred. ObjectivesThe objective of this research was to develop, transfer, and validate an affordable, rapid and easily implementable analytical method by HPLC-DAD for the quality control of herbal medicines marketed in the Democratic Republic of the Congo. Also, to determine these drugs fingerprint and their stability under accelerated conditions. MethodsChromatographic separation was achieved using two chromatographic columns, an XBridge C18 (250 × 4.6 mm i.d.; 5 μm particle size) and an XBridge C18 (100 × 4.6 mm i.d.; 3.5 μm particle size), column maintained at 30 °C. The mobile phase consisted of a gradient mixture of mobile phases A (acetonitrile) and B (aqueous solution of trifluoroacetic acid 0.05%) pumped at 1.0 mL/min. UV detection was performed at 280 nm. The method using the short column was validated using the total extracts as references. The strategy of total error was used to decide on the reliability of the method taking into account the acceptance limits fixed at ± 10%. ResultsThe validation results show that the developed HPLC-DAD method presented an adequate trueness, linearity, precision and accuracy. Two extra peaks found in the finish products did not interfere with phytomarkers, thus confirming the selectivity of the developed method as appropriate chromatographic profiles. The method was successfully used to determine the content of the phytomarkers in six ITMs. Furthermore, we could notice that the ITMs submitted to the accelerated degradation studies remained chemically stable over six months of harsh treatments. ConclusionA generic method of analysis of herbal medicines was developed using HPLC-DAD, and subsequently validated before being applied in a stability study of these drugs. The proposed method holds the promise of providing a new tool for quality product development in the field of traditional herbal medicines.

Starch Nanoparticles: Preparation, Properties and Applications.

Starch as a natural polymer is abundant and widely used in various industries around the world. In general, the preparation methods for starch nanoparticles (SNPs) can be classified into 'top-down' and 'bottom-up' methods. SNPs can be produced in smaller sizes and used to improve the functional properties of starch. Thus, they are considered for the various opportunities to improve the quality of product development with starch. This literature study presents information and reviews regarding SNPs, their general preparation methods, characteristics of the resulting SNPs and their applications, especially in food systems, such as Pickering emulsion, bioplastic filler, antimicrobial agent, fat replacer and encapsulating agent. The aspects related to the properties of SNPs and information on the extent of their utilisation are reviewed in this study. The findings can be utilised and encouraged by other researchers to develop and expand the applications of SNPs.

Eligibility of Thematic Student Worksheets Based Ethnoscience on Single Substance and Mixed Substance Materials for Elementary School

The rapid flow of globalization has resulted in the erosion of local cultural values in Indonesia. This has resulted in a shift in content and neglected local wisdom. This study aims to produce and find the quality of thematic student worksheet-based ethnoscience on Single Substance and Mixed Substance Materials for Elementary Schools. This research is research and development (RD), with the development of the Nieveen model with preliminary stages, prototyping stages, summative evaluation, and systematic reflection and documentation. The subjects of this research are media expert validators and material expert validators, one elementary school teacher, and 10 students. The quality of the learning tools developed is measured through the analysis of validity and practicality. The product validity assessment uses a validation questionnaire distributed to experts, and the data obtained is analyzed using the feasibility percentage formula. The practicality of using a response questionnaire assessed by the teacher and students was analyzed using the percentage of practicality. This study resulted in average feasibility of 88.21% categorized as very feasible. The percentage of the practicality of each aspect is 94.33% and 93.33%, categorized as very practical. It was concluded that the LKPD developed met the criteria for developing quality products that were valid and practical. Based on this, it can be concluded that the product developed is feasible and practical to be applied in learning.

DESIGNING BUSINESS PERFORMANCE MEASUREMENT INSTRUMENTS WITH SHORTTAN BALANCED SCORECARD AT CAFE RED &BLUE TANJUNGPINANG

Performance management in question is with the aim of increasing the strategic focus and effectiveness of the company in ensuring continuous improvement of individual and team performance. The most popular approach is to use the BSC (Balanced Scorecard). Cafe Red&Blue wants to grow and maintain its business. Therefore, in this study we want to design an instrument for measuring performance at Red&Blue cafes using the BSC. The initial stage in designing the instrument is to conduct internal and external analysis to determine the position of the business in the industry and the strategy that must be used. The SWOT approach is used in the analysis of the internal and external environment. From the SWOT analysis, it can be seen that the Red&Blue cafe is in quadrant I position. The strategy that must be applied is an offensive and defensive strategy as a complement. This strategy requires Red&Blue to improve its marketing strategy in order to bring even greater opportunities to the business. The next stage is through the formulation of strategic objectives, the objectives of which are designed; increase profits, increase customer loyalty, improve relationships with new customers, develop quality products with innovation, develop good and quality services, improve employee job satisfaction, increase employee skills, and knowledge employee knowledge. The eight strategic objectives are translated into 2 key financial performance indicator (KPI) perspectives, 3 internal business process KPIs, 4 customer KPI perspectives, and 5 KPI growth and learning perspectives, with targets for each KPI set based on discussions with Red&Blue cafe owners.

Effect of Flower Development Stages on the Dynamics of Volatile Compounds in Ylang-Ylang (Cananga odorata) Essential Oil

Several abiotic factors influence the chemical composition of essential oils. Understanding these factors is an important step in developing quality products that meet market demands. This research work aims to study the chemical composition of the essential oils of ylang-ylang (Cananga odorata, forma genuina) according to the maturity of flowers. The volatile compounds of ylang-ylang flowers from Reunion Island were extracted by hydrodistillation and the samples were analyzed by high resolution gas chromatography coupled with mass spectrometry (GC-MS) allowing for the identification of 70 volatile compounds. The chemical composition of the essential oils extracted from the flowers at 5 different stages of development varies both qualitatively and quantitatively. The volatile compounds observed belong to 4 chemical groups which are esters, alcohols, terpenes, and ether-oxides. The synthesis of light oxygenated compounds is largely the predominant chemical subgroup in all stages of development. Their relative content is considerably increased during flower ripening with a peak concentration in stage 4 (SD4). The highest concentrations of non-terpene esters and heavy oxygenated compounds are found in stages 1 (SD1) and (SD5), respectively, while no chemical subgroup is dominant in the intermediate stages 2 (SD2) and (SD3). The dynamics of volatile compounds have also been studied. This study established that the stage of development of ylang-ylang flowers significantly influences the dynamics of volatile compounds in the extracted essential oils. Total oxygenated compounds that are highly odoriferous in essential oils increase progressively and significantly with flower maturity, unlike hydrocarbon terpenes, which are less valuable in terms of their contribution to the fragrance and following opposite kinetics; suggesting that odoriferous properties increase with the development of the flower, with a higher intensity at SD4.

Development of Project-Based University Student Work Sheets in Student's Kitchen Management Course

This study aims to produce a Project-based Team-based student worksheet in the Kitchen Management course. This type of research is research and development that refers to model development, with stages (1) self-evaluation stage consisting of analysis and design (2) prototyping stage consisting of expert review, one to one and small group (3) field test stage . The data were collected using quantitative descriptive analysis techniques through questionnaires or questionnaires related to the quality of product development. The results showed that student learning outcomes were seen from the pre-test, post-test and mid-semester exams in the course Evaluation of Kitchen Management Learning Outcomes. Catering Education students experienced a significant increase after using this project-based student worksheet.

Collaborating product development and maintenance service: quality incentive with inspection and warranty strategies

ABSTRACT Service-oriented manufacturing has been a prevalent trend in integrating product collaborative development with maintenance service, whereas the final products are frequently trapped into severe quality defects lacking appropriate contracting incentives. This paper establishes a tractable framework investigating the alignment of inspection and warranty strategies to manage product quality throughout the R&D, manufacturing and usage processes. Specifically, the manufacturing effort is motivated by a cost-sharing contract provided by the researcher, who performs quality inspection upon receiving the final product. Subsequent maintenance service is predesignated for warranty period coverage that the cost is partially claimed for compensation from the manufacturer. Under both breakdown and preventive maintenance strategies, we elaborate and compare the optimal incentive intensities solving the equilibrium effort decisions and inspection accuracy. The results suggest that both R&D and manufacturing effort levels under preventive maintenance are slightly higher than that under breakdown maintenance scenario, while inspection accuracy contradicts conversely. The breakdown maintenance strategy is associated with a lower proportion of warranty costs borne by the manufacturer. For a sufficient long warranty period, the researcher is better off to conduct preventive maintenance periodically. Our study contributes to providing explicit implications to manage product development quality with adequate inspection and warranty strategies.

Pengembangan Media Pembelajaran Teka-Teki Silang “Keberagaman Kebudayaan Indonesia” Muatan Pelajaran IPS bagi Peserta Didik Kelas IV Sekolah Dasar

This research is motivated by the limited use of learning media that has not been varied, only using textbooks as teaching materials and posters of cultural map images. This study aims to determine the steps of media development and to determine the quality of product development in the form of a crossword puzzle learning media book "Indonesian Cultural Diversity" content of social studies lessons for fourth grade elementary school students. This study uses the Research and Development (R&D) type of research, with the research model using the ADDIE model. The research subjects are media experts, material experts and learning experts. Data collection techniques using observation, interviews and questionnaires. Data analysis used qualitative and quantitative analysis. The results of the assessment from the validation sheet by media experts obtained a score of 77.77 included in the good category, validation by material experts obtained a score of 85.41 included in the very good category, validation by learning experts obtained a score of 82.50 included in the very good category and the results of the assessment Overall from the experts obtained an average score of 81.89 which is included in the very good category. The results of the study indicate that the development of crossword puzzle learning media can be said to be of high quality to use.

Study on the impact of Corona Virus and it’s mutants in India using machine learning algorithms

With the advent growth of technology, large volumes of data are available in the internet for researchers to explore. Social Media is one such platform that helps researchers in analyzing various data for various reasons such as improved Customer Service, development of quality Products. , discovering New Marketing Strategies, improve Media Perceptions and much more. The Social networking sites such as Facebook, Twitter, Instagram are being used by people on a large scale to share and express their views in the form of text, emoji and post. This data is used for sentiment analysis. This paper aims at analyzing the human sentiments and emotions in the second wave of Corona virus in India and about the awareness of vaccination using twitter data. Machine learning algorithms such as Naïve Bayes, Logistic Regression and Support Vector Machine were implemented on the twitter data set. As the pandemic situation has created an alarming situation with new symptoms, the disease has affected many in India. This study will assist the government agencies and health care volunteers to better assess the mental state of public and to bring more awareness on safe and secured living by adapting precautionary measures.

Gaussian and Mean Curvature of Biquintic Trigonometric Bézier Surface

Bézier curves and surfaces are very important in many areas, especially the manufacturing and aerospace. Surface inspection through visualisation is required to create high-quality surfaces and reduce unwanted products. The smoothness of the surface can be quantified using curvature. In this research, different surfaces types will be generated using the quintic trigonometric Bézier basis function. All the surfaces will be evaluated and analysed using Gaussian and mean curvature. Finally, curvature for each surface type will be mapped using colour-coded mapping and can be further characterised based on their positive and negative curvature values. This insight can also help the designer produce a smooth surface and develop quality products.

Promoting product idea contribution of heterogeneous users for product improvement in online innovation communities

ABSTRACT Collaboration between firms and product users has been widely practiced to enhance the efficiency and quality of product development. We consider a collaborative product improvement setting where a sponsoring firm and product users jointly create or promote product design ideas through firm-sponsored online user innovation communities (FOUICs). Using a differential-game framework, we study a benchmark case in which product users involved in FOUICs are homogeneous in their innovative contribution capacities and propensities. We then incorporate users’ heterogeneity such that product users are distinguished into lead users and common users. Our analytical result shows that the equilibrium effort levels and utilities of both the sponsoring firm and product users may increase or decrease with a change in the output elasticities of product design ideas or in the cost elasticities of the effort levels. Moreover, lead users’ equilibrium effort level and utility are more sensitive to the elasticity parameters of product users’ effort than those of common users, and lead users obtain a higher total incentive reward than that of common users. Last, we compare the benchmark model and the extended model to identify the condition under which one model outperforms the other one for both the sponsoring firm and product users.

Measuring the Quality of Cooperative’s Savings and Credit Services from Their Members’ Perspective

Cooperatives are vital contributors in the socio-economic development of our society as they help in attaining better quality of life for their members. With the fact that the value of the cooperative to members lies primarily in the use of its services, an attention must be drawn to develop quality products and services based on their members’ needs, interests and expectations. It is imperative that cooperatives regularly assess its members’ satisfaction to further improve member retention, service offers and attract more members. This study examined the service quality and levels of satisfaction derived by members in the savings, lending and consumer credit services of a multi-purpose cooperative in Marawi City. This research employed quantitative techniques and supplemented by qualitative methods. The conceptual framework of service quality model known as SERVQUAL was conducted with multi-purpose cooperative members as the respondents of the study. The sample size of 276 respondents was derived using Cochran’s Formula. Cronbach alpha values for each dimension in both expectations and perceptions was deemed acceptable with ≤ 0.70 values. Aside from SERVQUAL Gap Score, this study used SPSS software and employed the statistical tools of mean, percentage, ranking, frequency and ranking in the interpretation and analysis of data. Paired t test was also conducted to compare the differences between member expectations and perceptions on their cooperative’s service quality. The findings of the study revealed that there exists a negative gap for the cooperative’s service quality, hence a que for quality improvement. Results showed that management should focus on responsiveness dimension, followed by reliability, then tangibles, assurance and empathy dimension. Using the weighted gap and incorporating the importance weights, this study presented a useful diagnosis and recommendations for the cooperative management in prioritizing service quality improvement. The implication of this study is the ease of use and adaptability of SERVQUAL in regularly assessing and continually improving cooperative’s savings, credit and lending services.

Peran Harga dan Kualitas Produk Bagi Konsumen Melakukan Pembelian Ulang di Toko Roti Primadona Surabaya

The efforts of bakers to compete in the bakery industry are shown by always paying attention to competitors' prices and developing quality products for customers. Bakers strives to achieve customer satisfaction. Customer satisfaction and a pleasant experience provide a greater opportunity to make a decision to repurchase bakery products. repurchase decisions also reflect the price and quality of products that meet customer expectations. The purpose of this study was to determine the effect of price and product quality on repurchase decisions at Primadona Surabaya bakery. This type of research is explanatory research at the Primadona bakery, Surabaya. The population in this study were all customers who had bought bread and cakes at Primadona Surabaya bakery with 100 respondents. The results showed that the price had a significant effect on the repurchase decision. In addition, purchasing decisions made by consumers are also significantly influenced by product quality. Price and product quality have been shown to have a significant influence on the formation of joint repurchase decisions

The missing link in the evolution of product design: a strategy roadmap towards product development success

PurposeThe literature on product design/development (PD) has attempted to understand the consumer but has not provided a comprehensive framework for product marketers and designers. Thus, this paper aims to compile and link the main topics in the literature on PD to create a foundation for strategic development in this field.Design/methodology/approachThis research adopted a “fit-for-purpose” methodology, a cross-referencing method and a meta-narrative approach that are appropriate for reviewing studies in a field involving complex topics and areas in which the literature is still developing.FindingsTo enhance the quality of product development, there is a need for PD strategy based on a clear understanding of many factors: the consumer; the complex interrelations among a product’s values, dimensions and personalities; PD theories; and other related variables.Practical implicationsThis study found that PD studies should concentrate more on codifying strategies to enhance product development success. This is particularly important in view of consumers’ varied and changeable tastes in the global market and the differing insights of product marketers and designers.Originality/valueThis comprehensive systematic review is a unique study that contributes to future business-to-consumer and business-to-business research by compiling scattered and hidden strategies, theories and variables in the PD/development literature.

PENGEMBANGAN MEDIA BERBASIS POWERPOINT INTERAKTIF TEMA 1 SUBTEMA 3 PERTUMBUHAN HEWAN UNTUK SISWA KELAS III SD NEGERI 007 TEBING KARIMUN

Penelitian ini bertujuan untuk mengetahui bagaimana prosedur pengembangan serta kelayakan media pembelajaran powerpoint interaktif untuk siswa kelas III SDN 007 Tebing Karimun. Jenis penelitian ini adalah penelitan Research and Develoment (R&D) yang mengacu pada model Borg and Gall. Teknik pengumpulan data dilakukan dengan pengumpulan kuosioner serta teknik analisis data menggunakan deskriptif kuantitatif dan kualitatif. Hasil penelitian menunjukkan bahwa (1) validasi dari ahli materi berdasarkan penilaian kelayakan memperoleh kriteria sangat layak (83%); (2) validasi dari ahli desain memperoleh kriteria sangat layak (100%); (3) Hasil respon guru kelas III terhadap media powerpoint interaktif mendapat kriteria sangat baik (83%); (4) Hasil respon uji coba siswa terhadap kelayakan media yang dilakukan yaitu uji coba lapangan awal dengan kriteria sangat baik (92%), uji coba lapangan kelompok kecil dengan kriteria sangat baik (84%) dan uji coba lapangan kelompok terbatas dengan kriteria sangat baik (86%). Hal ini menunjukkan bahwa media pembelajaran berbasis powerpoint interaktif tema 1 subtema 3 pertumbuhan hewan untuk siswa kelas III SDN 007 Tebing layak untuk digunakan sebagai media pembelajaran di sekolah.

Effect of coordination nutritional ingredients on the development and cordycepin, adenosin production of Cordyceps militaris ĐÁNH GIÁ HIỆU QUẢ BỔ SUNG MỘT SỐ NGUỒN NITƠ VÀ CARBON VÀO MÔI TRƢỜNG NUÔI CẤY ĐẾN SỰ PHÁT TRIỂN VÀ KHẢ NĂNG TÍCH LUỸ HOẠT CHẤT CỦA NẤM ĐÔNG TRÙNG HẠ THẢO Cordyceps militaris

Cordyceps militaris is an insect parasitic fungus with high medicinal value similar to Cordyceps sinensis and has great economic value. Ensuring the balance between the biomass and the bioactive potential of C. militaris plays an important role in the development of quality products from this medicinal fungus. In this study, nitrogen sources (fresh silkworm pupae, peptone, yeast extract) with different concentrations were used to evaluate the effect on yield, morphology and content of cordycepin, adenosine of C. militaris. The results showed that the N1 medium using 20 g\L fresh silkworm pupae, 0.5g\L KH2PO4 and 0.5g\L MgSO4 gave the highest yield and active ingredient content, with cordycepin yield of 17.01 mg\jar. Adding carbon sources (glucose and sucrose) at concentrations (10, 20, 40 g\L) to N1 medium can shorten the time of filamentous spreading and the time of fruit body formation, but significantly reduce cordycepin content. This result has important implications for medium optimization for C. militaris culturing.