During the recent past period, academic researchers and practitioners devoted their efforts for improving the scheduling process and developing an effective approach. They were seeking to optimize scheduling problems through exploration and exploitation the solution space. The first section in this chapter presents two different optimization approaches that are able to solve and optimize job shop scheduling problem. The first type of optimization approaches is based on exact algorithms and they are usually used for simple and small size problem. Another type of approaches is based on more sophisticated algorithms that can be applied to more complex and larger problems. These approaches are denoted as approximate algorithms where the solutions may be optimal or near-optimal. Approximate algorithms can be classified into heuristic and meta-heuristic methods. The main purpose of this chapter is to present a comprehensive survey of different approaches available for solving the job-shop scheduling problem. It will be important also to identify the trend of research and the gaps that require further research in the second section of this chapter Jain and Meeran [12].
3.2 Exact Methods
Over the last years, various types of exact methods were proposed for developing the job shop scheduling problem (JSSP). Exact methods are considered simple approaches. They do guarantee optimal solutions as long as problems are small. Most of the JSSPs can be formulated as linear programming,
The JIT approach to manufacturing involves timing the delivery of resources so that they arrive just when needed. Inventory optimization models help the firm determine how many of which items in which sizes should be delivered to each specific store during twice-weekly shipments, ensuring that each store is stocked with just what it needs. Trucks serve destinations that can be reached
The JC Gear Company has decided to initiate a project aimed at automating its production planning and control system. Among the options, the company focuses on two alternatives: (1) purchasing the most suitable system off of the shelf and modifying it according to its individual production needs; or (2) developing a system
The concept of a “job shop” as a transformation system, refers to a process which has a somewhat jumbled flow, high flexibility, and outputs which are processed differently (Lyons, Vidamour, Jain, & Sutherland, 2013). One of the most important aspects of the job shop which must be understood relates to the definition presented above. Managing a job shop is difficult because of the numerous different routes that an output might take, the numerous different inputs which are required, and the differing operations and amounts of time (Meredith & Shafer, 2013). “[S]ince every output must be treated differently”, efficiently
Shop floor scheduling prioritizes, schedules work, and communicates the progress of work regarding the schedules and plans that have been made. Shop floor planning is necessary to ensure that expected quantities are completed on time and that resources such as labor, materials, machinery and equipment are used to best effect.
Like all companies the main one of the main objectives is to reach their goal and objective while also keeping cost down. In relation to option one to hire temporary employee does not necessarily keep cost down. Although hiring of temporary staff will help to reduce the workload of technically competent employees it will cost to hire a sent number of temporary staff to reduce staff workloads. In relationship to cost this option will not fair well using these criteria. The other two options are more capable of obtaining it objective and goal while keeping cost down.
“For companies today, MRP is a computerized information system. As such, it requires data to provide the information needed for decision making” (Vonderembse & White, 2013, Section 9.5, para 6). The goal of this paper is to read the Space Age Furniture Company case study and develop an MRP for Space Age Furniture Company using the information in the case including the production of sub-assemblies in lot sizes of 1,000 considering the lot size of 1,000 for sub-assemblies has produced a lumpy demand for part 3079; suggest ways for improvements over sub-assemblies in lot sizes of 1,000, analyze the trade-off between overtime costs and inventory costs, calculate a new MRP that improves the base MRP, compare and contrast the types of production processing—job shop, batch, repetitive, or continuous—and determine which the primary mode of operation is and why, describe ways that management can keep track of job status and location during production and recommend any changes that might be beneficial to the company and/or add value for the customer.
Staffing and scheduling are two words that are often confused and used interchangeably. Whereas staffing means the matching of expertise with the needs of the recipient position, scheduling means determining a set number of staff and type of staff for a period of time (Jamal, McKenzie & Clark, 2009). Effective staffing and scheduling of employees would deem effective in a situation where employees are understaffed while the quantity of work is outrageously huge. The ability to multitask and work under pressure is an effective talent often looked for in prospective employees. Such talents and skills come in handy in such situations where the organization is understaffed while there is huge demand for
When k = 2, we can solve the given problem with a polynomial time brute-force algorithm. For every set of n2 processes, we loop over m resources to determine if there are any resources in common between them. If they don’t, there are no sets of k = 2 processes with such resources. If they do, then there is a set of k = 2 processes with such resources.
By doing this assignment, it help me confirm my academic goal of graduating with a bachelor's degree in health management and to find a career at a hospital or rehabilitation center. It help me identify the Job Zone and the amount of education and experience needed to achieve that goal. Furthermore, it helped identify my interest and what type of work I would be interested in doing. It gave me insight on what role I am particularly inclined to play and how it can correspond with the different zones needed for different careers. This information has given me a clearer understanding of who I am and where I want my career to go. It has also gave me insight to what I do need to complete, and the expectations required to achieve my goals.
Due to scheduling issues, there is an over shoot of utilization levels above 100% in government, manufacturing, retail and other sectors. On scrutinizing carefully, we find that high variability is caused due to variable seasonal characteristics of the various sectors. Hence, the solution lies in changing the organisational set up.
I chose the career services webshop. In this webshop, the main topics were creating your resume, preparing for your interview, and researching employers. All three of these topics helped me to better learn what is offered by the Mason Career Services and I was able to learn how to be better prepared in the future.
Within this case study, many individuals can be referred to as stakeholders. The individuals residing in the two states where the plants are located may be affected by any changes that occur within their geographic area. In addition, federal, state, and local government agencies are responsible for the enforcement of laws that the business may be required to abide by.
Reference Case from "Project Management, A Systems approach to planning, scheduling and controlling" by Harold Kerzner, PH.D.
Before we can begin the staffing plan process, we must first answer a few questions in order to find what it is we are looking for. For example, how much time do we want the individual to dedicate to the job? Do we want full-time, or part-time employees? What is the length of service that we are
Job design focus about the job requirements of employees. Therefore they need to have skill, knowledge and ability to perform the job. And talent management strategy and practice help for the selection process to emphasis on performance result evaluation