A Districting Application with a Quality of Service Objective

E-commerce sales have led to a considerable increase in the demand for last-mile delivery companies, revealing several problems in their logistics processes. Among these problems, are not meeting delivery deadlines. For example, in Chile, the national consumer service (SERNAC) indicated that in 2018, late deliveries represented 23% of complaints in retail online sales and were the second most common reason for complaints. Some of the causes are incorrectly designed delivery zones because in many cases, these delivery zones do not account for the demographic growth of cities. The result is an imbalanced workload between different zones, which leads to some resources being idle while others fail to meet their workload in satisfactory conditions. The present work proposes a hybrid method for designing delivery zones with an objective based on improving the quality of express delivery services. The proposed method combines a preprocess based on the grouping of demand in areas according to the structure of the territory, a heuristic that generates multiple candidates for the distribution zones, and a mathematical model that combines the different distribution zones generated to obtain a final territorial design. To verify the applicability of the proposed method, a case study is considered based on the real situation of a Chilean courier company with low service fulfillment in its express deliveries. The results obtained from the computational experiments show the applicability of the method, highlighting the validity of the aggregation procedure and improvements in the results obtained using the hybrid method compared to the initial heuristic. The final solution improves the ability to meet the conditions associated with express deliveries, compared with the current situation, by 12 percentage points. The results also allow an indicative sample of the critical service factors of a company to be obtained, identifying the effects of possible changes in demand or service conditions.

The 1+5 Architectural Views Model in Designing Blockchain and IT System Integration Solutions

Service fulfillment for clients increasingly involves cooperation between information technology (IT) systems. Designing such solutions requires an architectural approach that ensures symmetry between the communicating parties. For the design of such systems, the author introduces the 1+5 architectural views model. The model contains three new architectural views. For business process modeling, it ensures the integrated processes view. Integration aspects cover two additional views: integrated services, and contracts. Moreover, new stereotypes and tagged values have been added to the unified modeling language (UML). The author has introduced two profiles: UML profile for integration flows, and UML profile for distributed ledger deployment. Communication between systems requires flows that arrange mediation mechanisms. The paper describes an integration flow diagram that extends a UML activity diagram. In the case of blockchain, the author has proposed the smart contract design pattern. The paper describes three case studies that have employed the model to design various solutions. The 1+5 model has proven to be well suited for designing both centralized integration environments with enterprise service bus (ESB) and distributed blockchain solutions with peer-to-peer (P2P) connections.

Robust Data-Driven Vehicle Routing with Time Windows

On-time delivery is of utmost importance in today’s urban logistics. However, travel times are uncertain and classical deterministic routing solutions often fail to ensure timely delivery. In this paper, a robust solution that exploits travel times data to determine the best routes for maximal timely delivery is proposed. A new decision criterion is introduced, the service fulfillment risk index (sri), which accounts for both the late arrival probability and its magnitude. Together with Wasserstein distance–based ambiguity in travel times, sri can be evaluated efficiently in closed form. In addition, an exact branch-and-cut approach and a meta-heuristic algorithm are developed to minimize sri with a given travel cost. Simulation studies demonstrate that handling uncertainty improves service punctuality, and that incorporating ambiguity prevents overfitting. Most importantly, sri outperforms the canonical decision criteria of lateness probability and expected lateness duration.

Price-Directed Cost Sharing and Demand Allocation Among Service Providers with Multiple Demand Sources and Multiple Facilities

Problem definition: We consider capacity sharing through demand allocation among firms with multiple demand sources and multiple service facilities. Firms decide on the allocation of demand from different sources to different facilities to minimize delay costs and service-fulfillment costs possibly subject to service-level requirements. If firms decide to operate collectively as a coalition, they must also decide on a scheme for sharing the total cost. Academic/practical relevance: We study capacity sharing through demand allocation in service systems in the presence of service-fulfillment costs. Our problem is motivated by service collaboration in healthcare involving public–private partnerships. Methodology: We formulate the problem as a cooperative game and identify a cost allocation that is in the core. Results: The cost-allocation scheme we identify is price-directed, and the cost of each firm consists of three components: (1) the delay cost incurred within the firm; (2) a cost paid for the capacity used by the firm at facilities owned by other firms; and (3) a payment received for fulfilling demand of other firms at facilities owned by the firm. Interestingly, we show that the cost-allocation scheme is equivalent to a market equilibrium—that is, it can be implemented in a decentralized fashion. We extend our analysis to settings where the capacity of each facility is endogenously determined and to settings where a service-priority policy is deployed. Our results are robust to a variety of generalizations: partial sharing, partial transfer, facilities modeled as general queueing systems, and convex delay costs. Managerial implications: Our findings provide guidelines for and insights into how to carry out demand allocation and cost sharing among different firms in the presence of service-fulfillment costs to foster service collaboration. In particular, the equilibrium market prices can be viewed as the prices/subsidies for service collaboration in a public–private partnership.

MEMPREDIKSI FAKTOR-FAKTOR YANG MEMPENGARUHI LOYALITAS KONSUMEN TERHADAP PEMBELIAN ONLINE: SUATU STUDI EMPIRIS

Abstract– This study aims to test consumer loyalty to GrabFood in terms of security, privacy, service fulfillment, non decptionand satisfaction from GrabFood consumers themselves. The sampling design used is purposive sampling which is a nonprobability sampling. All research indicators come from previous studies. Before testing hypotheses using structural equation modeling, the reliability and validity tests were carried out. The results of this study indicate that there is a significant relationship between security and non-deception on consumer satisfaction, and not deception and fulfillment of services to loyalty, both directly and indirectly. Based on the results of this study also, it was said that between customer satisfaction and customer loyalty, there was a significant relationship. This study suggests factors that must be considered by an online business in gaining customer loyalty. Keywords: Consumer Satisfaction, Consumer Loyalty, Security, Fulfillment, Non Deception, Privacy

Information Technology Services in Area Service Operations Based on ITIL V3 2011: Measurement Results

Evaluation of IT services at PT. Tower Bersama group includes 5 processes in the service operation that is Incident management, Problem management, event management, service fulfillment and access management. based on the evaluation that has been done management can know the process that is still not good and get proposed improvement based on evaluation results.

Dominance of Technical Facilities Available in Individuals based Bank than Compared to Corporate based Banks

The Banking business like numerous other money related assistance enterprises is confronting a quickly evolving business sector, new advancements, financial vulnerabilities, wild challenge and all the more requesting clients and the changing atmosphere has displayed a remarkable arrangement of difficulties. Banking is a client situated administrations industry, in this manner, the client is the concentration and client support is the separating factors. In the setting of every one of these improvements the agent makes an endeavor to clarify the Customer Service fulfillment in Indian Banking Sector. In this examination paper, the fundamental conflict is to feature the consumer loyalty gave by chosen Banks Kotak Mahindra Bank and IDBI Bank.

Peer-Assisted Content Delivery to Reduce the Bandwidth of TSTV Service in IPTV System

With great technologies, emerge new needs and requirements. The progress achieved in Access broadband rates accentuated the demand on IPTV (Internet Protocol Television) services specially Video on Demand (VOD) and Time Shift TV (TSTV) which led subsequently to a great need for efficiency in the use of bandwidth consumed by those services. Optimization solutions are considered by IPTV service providers to lighten the service load especially on Access Nodes uplinks. This paper describes an optimization of TSTV dedicated bandwidth based on a peer-assisting TSTV content delivery, a solution in which the users STBs (set-top-boxes) assist the central TSTV servers in the service fulfillment. For this purpose, for each TSTV request, the STB will be receiving the TSTV stream from a neighbor STB instead of the central server. By using this method, the unicast traffic will not pass through the IP network; it will be a peer-to-peer communication within the access network. Extensive simulation results were included to illustrate the validity of the proposed new solution.

Analisis Customer Experience Dengan Importance Performance Analysis (IPA) – Suatu Studi Pada Pelanggan Telkom Indihome Regional III Bandung

This research was conducted to determine the comparison between customer expectations and company performance. The object of this research is Telkom IndiHome product customer care service by taking the subjects of 100 Telkom IndiHome Regional III Telkom customers who have interacted with Telkom IndiHome customer care services. The results obtained from the comparison between expectations and performance obtained a level of suitability of 69.215%. Furthermore, from the analysis technique of Importance Performance Analysis (IPA), there are eight attributes that are in the top priority of the company to be improved, the two most important things are: the accuracy of service fulfillment as promised and the speed of resolution of the disturbance. Penelitian ini dilakukan untuk mengetahui perbandingan antara harapan pelanggan dan kinerja perusahaan. Objek penelitian kali ini adalah pelayanan customer care produk Telkom IndiHome dengan mengambil subyek 100 pelanggan Telkom IndiHome Regional III Kota Bandung yang pernah melakukan interaksi kepada layanan customer care Telkom IndiHome. Hasil yang diperoleh dari perbandingan antara harapan dan kinerja didapatkan tingkat kesesuaian sebesar 69,215%. Selanjutnya dari teknik analisis Importance Performance Analysis (IPA) maka terdapat delapan atribut yang berada pada prioritas utama perusahaan untuk dilakukan peningkatan, dua hal yang paling penting diantaranya adalah : ketepatan pemenuhan layanan sesuai yang dijanjikan dan kecepatan penyelesaian gangguan.