Judul: Kepuasan Konsumen Cloud Kitchen Ayam Serundeng Wak Haji di Bandar Lampung
Abstrak: Cloud kitchen merupakan model usaha jasa makanan yang tidak melayani pesanan makan di tempat dan hanya berfokus untuk melayani konsumen secara pelayanan pesan antar. Ayam Serundeng Wak Haji merupakan salah satu usaha kuliner di Bandar Lampung yang berdiri tahun 2022 dengan konsep cloud kitchen. Rata-rata penjualan produk yang belum mencapai target serta terdapat komentar kurang baik dari konsumen sehingga diperlukan analisis kepuasan konsumen. Penelitian ini bertujuan untuk mendeskripsikan proses keputusan pembelian konsumen, menganalisis tingkat kepuasan konsumen, dan menganalisis atribut yang perlu diperbaiki. Data dianalisis menggunakan analisis deskriptif, Customer Satisfaction Index (CSI), dan Importance Performance Analysis (IPA). Hasil dari penelitian ini adalah sebagian besar responden adalah perempuan muda berstatus mahasiswa atau pelajar dan memiliki keputusan pembelian otonom. Berdasarkan analisis CSI, nilai yang didapat sebesar 83,38 persen dan berada pada kategori “sangat puas”. Berdasarkan hasil IPA, atribut ketersediaan menu dan kelengkapan deskripsi menu di marketplace menjadi prioritas dalam perbaikan kinerja untuk meningkatkan kepuasan konsumen., Cloud kitchen is a food service business system that does not serve dine-in orders and only focuses on serving delivery. Ayam Serundeng Wak Haji is one of the culinary business in Bandar Lampung which was established in 2022 with the concept of cloud kitchen. The average sales of products that have not reached the target, coupled with negative feedback from customers, necessitate a customer satisfaction analysis. This study aims to describe the consumer purchase decision process, analyze the level of consumer satisfaction, and analyze the attributes that need to be improved. Data were analyzed using descriptive analysis, Customer Satisfaction Index (CSI), and Importance Performance Analysis (IPA). The results of this study are that most of the respondents are young women with student status and have autonomous purchasing decisions. Based on the CSI analysis, the CSI of this restaurant is 83,38 percent which is equal to "very satisfied" category. Based on the IPA results, the attributes of menu availability and completeness of menu descriptions in the marketplace are priority in improving performance to increase consumer satisfaction.
Keyword: CSI, IPA, Kepuasan Konsumen, Keputusan Pembelian

Judul: Analisis Proses Pengambilan Keputusan Pembelian dan Kepuasan Konsumen RM. Sop Ayam Pak Min Klaten Cabang Bogor
Abstrak: RM. Sop Ayam Pak Min Klaten Cabang Bogor is one of restaurant which offers traditional Javanese cuisine, especially chicken soup. The objectives of this study are to identify the characteristics of consumer, to analyze the decision buying process, to analyze the customer satisfaction level based on performance attributes of the restaurant, and to formulate alternatives marketing strategy. Data were collected by questionnaire survey to 100 respondents who were selected by convenience sampling. Descriptive analysis, Importance Performance Analysis (IPA), Customer Satisfaction Index (CSI), and gap analysis were employed in this research. The result of IPA showed some attributes to be improved, i.e. cleanness of the food and food equipment, cleanness of the restaurant, availability and cleanness of toilet and sink, availability of parking lot, and the comfort of restaurant. The result of CSI analysis showed that the level of consumer satisfaction was 75.27 percent, meaning that the consumers of RM. Sop Ayam Pak Min Klaten Cabang Bogor were satisfied.
Keyword: marketing strategy, gap analysis, IPA, CSI, characteristics of consumer

Judul: The Exploration of Discrete Logarithm over Finite Field GF(3m)
Abstrak: The security of many public~key algorithms is based on the problem of finding discrete logarithms. The generalized discrete logarithm problem is the following: given a finite cyclic group G of order n, a generator a of G, and an element fl E G, find the integer x, 0 ~ x ~ n - 1, such that 0: = fl. Algorithm for discrete logarithm problem focused on Menezes et al. (1997) that consist of exhaustive search algorithm, the baby-step giant-step algorithm, Pollard's rho algorithm, Pohlig-Hellman algorithm, and index-calculus algorithm. These algorithms are explorated to be used in discrete logarithm problem over finite field GF(3m ). The exploration also produces some algorithms, i.e. naif negative algorithm, baby-step mother-step algorithm, baby-step mother free-step algorithm, and baby-step free-step algorithm. All algorithms implemented using Maple 11. The Pohlig-Hellman and baby-step giant-step algorithms are efficient enough to be used in discrete logarithm problem over finite field GF(3m ) for m < 20.
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