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PENERAPAN MULTI-LEVEL ASSOCIATION RULE MINING PADA ANALISA KECACATAN PROYEK KONSTRUKSI Febriani, Atik; Purnomo, M. Ridwan Andi; Mansur, Agus
Heuristic Vol 15 No 01 (2018)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v15i01.1517

Proyek konstruksi melibatkan banyak peserta (multiparties) untuk melakukan berbagai macam kegiatan yang direncanakan. Masing-masing peserta saling berinteraksi satu sama lain sehingga semua pekerjaan yang sudah dijadwalkan bisa selesai dikerjakan. Permasalahan utama dalam pelaksanaan proses konstruksi adalah ketidakefisienan. Ketidakefisienan tersebut berupa penggunaan sumber daya yang tidak menghasilkan nilai seperti yang diharapkan. Sehingga dalam pelaksanaannya seringkali ditemukan adanya cacat konstruksi. Pekerjaan yang cacat menyebabkan adanya keterlambatan dan pembengkakan biaya, serta memicu adanya sengketa antar pelaksana pada masa konstruksi dan operasi. Untuk mengatasi permasalahan tersebut, perlu dilakukan identifikasi faktor-faktor penyebab kecacatan dalam proyek konstruksi. Dengan mengetahui faktor-faktor tersebut, diharapkan pihak menejemen dapat mengontrol dan mengendalikan pekerjaan. Penelitian ini menggunakan pendekatan Multilevel Association Rule Mining untuk menemukan pola kecacatan tersebut. Hasil penelitian menunjukkan bahwa metode ini dapat menemukan pola kecacatan dalam industri konstruksi yang kemudian digunakan sebagai dasar pembuatan mitigation plan dalam upaya mencegah kerugian perusahaan.Kata Kunci : multi level association rule mining, kecacatan proyek konstruksi

Quality by design of yogurt product using taguchi multi responses method Parkhan, Ali; Purnomo, Muhammad Ridwan Andi
International Journal of Industrial Optimization Vol 1, No 2 (2020)
Publisher : Universitas Ahmad Dahlan

Quality of yogurt could be determined based on its flavor and texture which could be tested using an organoleptic test. The quality objective of the yogurt flavor and texture is larger the better. As one of the intermediate products that could be processed to become various other products, the demand for yogurt is continuously increasing in Indonesia. Along with the increase in demand, the demand for quality of yogurt has also increased. In this study, experiments have been conducted to improve the quality of a yogurt product. The experiments were designed based on the Taguchi method with Multi Responses Signal to Noise (MRSN) that involves 7 factors consists of 6 controllable factors and 1 uncontrollable factor. Every factor has 2 levels of an experiment. The 6 controllable factors are heating temperature, heating duration, number of yogurt seeds, incubation temperature, incubation duration, number of sugars, while the uncontrollable factor is the weather condition. Result of the experiments showed when weight for flavor and texture is 0.437 and 0.563 respectively, the levels of the optimum factors are 950C for milk heating temperature, 20 minutes for the duration of milk heating process, 75 ml of yogurt seeds, 450C of the temperature of incubation, 6 hours of incubation duration and 12.5 grams of sugar weight. Based on the organoleptic test that conducted by a group of experienced testers, the new optimum factors combination could improve the yogurtâ€™s quality in term of flavor and quality up to 16.24% and 11.37% respectively. It could be concluded that the proposed method could improve the quality of yogurt-based on preferences from the experienced testers that have been expressed by the weight of every quality response.

RANCANGAN LEAN PRODUCTION DENGAN MENGGUNAKAN VALUE STREAM ANALYSIS TOOLS (VALSAT) UNTUK ELIMINASI WASTE DOMINAN & MENINGKATKAN PRODUKTIVITAS SISTEM PRODUKSI Studi Kasus: CV. Sogan Batik Rejodani Dhuha Khanif Rizky; M. Ridwan Andi Purnomo; Nashrullah Setiawan
Teknoin Vol. 22 No. 3 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss3.art2

With increasing competition in the industry, SMEs are required to be able to do continuous improvement to improve its performance so as to compete with other SMEs and able to apply the concept of lean production. In CV SBR, demand will increase in Ramadan. With the increase in orders, then the CV SBR required to continue to meet customer demand in a timely manner in accordance consumer expectations. This research will try to apply the concept of lean production by using value stream mapping and analysis of waste using the Value Stream Analysis Tools (VALSAT) in order to increase the productivity of the production system in the CV Sogan Batik Rejodani. The purpose of this study is to determine the percentage of Value Added, Non-Value Added, and Necessary but Non-Value Added Activity of batik production system. Furthermore, to determine the design of future state value stream mapping in CV SBR. Obtained results are given in the form of proposed improvements that can reduce the Non-Value Added Activity from 43% to 13%. In addition the draft future state value stream mapping can reduce cycle time from 16115.88 seconds to 15062.96 seconds and can reduce the lead time from 24589,028 seconds to 15932.62 seconds. With the reduction in value-added activity, it can increase the output of the product in a day so that the productivity of the production system increases.

Analisis pengembangan model bisnis pada industri animasi menggunakan business model canvas yang terbatasi biaya Digdoyo Oktapriandi; Muhammad Ridwan Andi Purnomo; Ali Parkhan
Teknoin Vol. 23 No. 3 (2017)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol23.iss3.art2

Business development is an important thing for every company in order to adjust their self tofollow the world sophistication. One of business sector is animation that now became more advance along the world development. In Indonesia the business move in the field of animation has not been so ogled by the investors. One big reason is because investors do not know the level of profit to be gained. This study aims to develop a business model company engaged in the field of animation that accompanied the information related to the benefits of investment that will be obtained. the Method used in this research are business model canvas (BMC) and SWOT analysis which being modified with cost analysis. The results obtained is "Kasat Mata" animation company that has been operating for more than 10 years should be develop its business model in order to provide a good profit for the company. Based on cost analysis with several investment feasibility parameters, the business development model is eligible. At the end, this research can be used as a reference for the company for developing their business model and also can be used by investors as a consideration for understanding the benefits.

Perancangan model bisnis cinderamata sebagai implementasi social entrepreneurship Rifa'i Rifa'i; Muhammad Ridwan Andi Purnomo; Taufiq Immawan
Teknoin Vol. 23 No. 3 (2017)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol23.iss3.art9

Strategic location, near by national economic center, exposes Banten with positive vibe for its economic growth. Nevertheless, according to existing data, on the 3rd quarter in 2015, tourism sector only reached 2,6% of market share. Thus, it hasn’t been existed as featured sectors. It appears due to several reasons, one of them is supporting component for this cultural creative industry that still under-developed. One of the local creative industries that has purpose to promote the uniqueness value of Banten culture through local souvenirs is Ora Bae (OB). This business is built based on social entrepreneurship. OB was established in 2013. However, the designated business model, apparently do not consistent with the income.Referring to above problem, therefore this research is conducted to identify and evaluate the existing business model as well as to design appropriate one. This research is carried out by implementing direct observation in Ora Bae Souvenir Shop and several Small and Middle Enterprises (SMEs) under it. The interview is performed by using SWOT concept that integrated with Business Model Canvas (BMC).Later, the results of observation and interview are used as the current business model formula that will be employed for SWOT analysis. Its results will be applied as basic for determining the business model alternative. Blue Ocean Strategy is employed to eliminate elements of business model that are insignificant and to create innovation in the latest business model. The improvement conceptsare conducted by enhancing the numberscostume’s designersto anticipate new customers’ segmentation, neglecting low price components on offered price proposition, improving the products’ distribution channel on places that potentially could maximize the available channelsby participatingin Banten events as advertising service. The improvements are also supported by resources in IT Support. In maintaining the relationship with customers, it is required additional services such as personal assistance and customer care. The innovation of this recent business model is expected to be the alternative for solution on problems that encountered by Ora Bae brand.

Desain Visual Los Dawet Telasih dan Lenjongan Pasar Gede Hardjonagoro menggunakan Evaluasi Visual Kansei Mei Andrianto; Muhammad Ridwan Andi Purnomo
Teknoin Vol. 26 No. 1 (2020)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol26.iss1.art5

Kecenderungan penurunan jumlah pengunjung Pasar Gede Hardjonagoro akan sangat mempengaruhi pendapatan pendagang. Namun penurunan kunjungan konsumen tidak dirasakan oleh pedagang jajanan pasar dan oleh-oleh khas Surakarta, hal ini disebabkan adanya peningkatan kunjungan konsumen luar kota yang berwisata ke Kota Surakarta. Los dawet telasih dan los lenjongan dipilih dalam penelitian karena dua obyek tersebut menjadi daya tarik utama bagi wisatawan yang berkunjung ke Pasar Gede Hardjonagoro. Penelitian ini akan membahas pendekatan Kansei Engineering untuk mendapatkan desain konsep visual los dawet telasih dan los lenjongan sesuai harapan konsumen. Tahapan proses penelitiannya dengan menggali emosi dan perasaan konsumen terhadap situasi riil yang ada. Hasil persepsi konsumen disintesakan ke dalam elemen-elemen desain dan disurveykan ke dalam bentuk pilihan konsep desain. Elemen-elemen desain digabungkan dalam bentuk desain awal yang akan disurveykan kembali dan dikonsultasikan dengan stakeholder terkait. Hasil dari penelitian adalah konsep desain akhir secara visual beserta elemen-elemen desain penyusunnya yang menarik sebagai media promosi bagi Pasar Gede Hardjonagoro.

Waste Analysis Using Lean Manufacturing in the Film Production Process Step 2 Ulama Wahyu Sidiq Saputra; Muhammad Ridwan Andi Purnomo
International Journal of Computer and Information System (IJCIS) Vol 2, No 3 (2021): IJCIS : Vol 2 - Issue 3 - 2021
Publisher : Institut Teknologi Bisnis AAS Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/ijcis.v2i3.44

Abstract - The film Footsteps 2 Ulama produced by LSBO Muhammadiyah in collaboration with Ponpes Tebuireng Jombang is a semi-documentary film that tells the journey of Kyai Ahmad Dahlan and Kyai Hasyim Asy'ari. At the time of the production of the film Jejak step 2 Ulama in its implementation there were several problems such as delayed production schedules, human resources that were not as needed, scheduling errors, and also production defects in several scenes so that they had to be re-take or it could be said to be re-production to get maximum results, where these problems tend to result in waste or waste. Therefore, a study was conducted to analyze what kind of waste occurs and the most dominant using a lean approach. Based on the results of the study, it was found that waste waiting is the most dominant waste with a weight of 27.11%, then followed by waste over production and excess processing with the same weight of 20.33%, waste defect 13.55%, waste transportation 11.86%, motion 5.08% and inventory 1.69%. From the mapping using process activity mapping, a total of 32 types of activities were obtained, of which 12 were value added activities with a percentage of 50.36%, then 9 of them were necessary non-value added activities with a percentage of 13.13%, and 11 activities included in the non-value category. added with a percentage of 26.49%.

Pengaruh pH dan Suhu Ekstraksi Zat Warna Alami dari Limbah Sabut Kelapa Muda (Cocos nucifera) pada Pewarnaan Kain Batik Mori Prima Non Mordan Agus Haerudin; Muhammad Ridwan Andi Purnomo; Sholeh Ma’mun
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2020: PROSIDING SNTKK 2020
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

Show Abstract | Download Original | Original Source | Check in Google Scholar

Quality by design of yogurt product using taguchi multi responses method Ali Parkhan; Muhammad Ridwan Andi Purnomo
International Journal of Industrial Optimization Vol. 1 No. 2 (2020)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/ijio.v1i2.2442

Quality of yogurt could be determined based on its flavor and texture which could be tested using an organoleptic test. The quality objective of the yogurt flavor and texture is larger the better. As one of the intermediate products that could be processed to become various other products, the demand for yogurt is continuously increasing in Indonesia. Along with the increase in demand, the demand for quality of yogurt has also increased. In this study, experiments have been conducted to improve the quality of a yogurt product. The experiments were designed based on the Taguchi method with Multi Responses Signal to Noise (MRSN) that involves 7 factors consists of 6 controllable factors and 1 uncontrollable factor. Every factor has 2 levels of an experiment. The 6 controllable factors are heating temperature, heating duration, number of yogurt seeds, incubation temperature, incubation duration, number of sugars, while the uncontrollable factor is the weather condition. Result of the experiments showed when weight for flavor and texture is 0.437 and 0.563 respectively, the levels of the optimum factors are 950C for milk heating temperature, 20 minutes for the duration of milk heating process, 75 ml of yogurt seeds, 450C of the temperature of incubation, 6 hours of incubation duration and 12.5 grams of sugar weight. Based on the organoleptic test that conducted by a group of experienced testers, the new optimum factors combination could improve the yogurtâ€™s quality in term of flavor and quality up to 16.24% and 11.37% respectively. It could be concluded that the proposed method could improve the quality of yogurt-based on preferences from the experienced testers that have been expressed by the weight of every quality response.

Imperfect Production Inventory Models: A Bibliometric Analysis Novrianty Rizky; Agham Satria Pristiwaji; Muhammad Ridwan Andi Purnomo
Enrichment : Journal of Management Vol. 12 No. 2 (2022): Management Science and Field
Publisher : Institute of Computer Science (IOCS)

Economic order quantity models have been fascinated to be researched since a long time ago. This article presents a bibliometric analysis for imperfection production inventory models. Analysis involved 40 peerreviewed research articles published during 2000-2020 at Google Scholar and Sciencedirect. The articles are filtered based on trends, year of publication, countries, institution, and publisher name. Result of this study shows that a journal entitled International Journal of Production Economics has the most published article in the area. Content analysis has classified purpose of research, type of echelon, type of demand, lead-time, backorder, type of production process, quality improvement, setup cost and ordering cost reduction, logistic cost, and pick-up service. This study also recommends research gap for future studies in the field of inventory for supply chain management

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