Waterfall model, V-model, spiral model, and other SE models

2019 ◽  
pp. 129-138
Author(s):  
Adedeji B. Badiru
Keyword(s):  
Waterfall Model ◽  
Spiral Model

Project Implementation Decision Using Software Development Life Cycle Models: A Comparative Approach

2021 ◽  
Vol 28 (1) ◽  
Author(s):  
M.A. Adeagbo ◽  
J.E.T. Akinsola ◽  
A.A. Awoseyi ◽  
F. Kasali
Keyword(s):  
Life Cycle ◽  
Comparative Analysis ◽  
Software Development ◽  
Cost Estimation ◽  
Comparative Approach ◽  
Project Implementation ◽  
Development Life Cycle ◽  
Software Development Life Cycle ◽  
Waterfall Model ◽  
Spiral Model

Selection of a suitable Software Development Life Cycle (SDLC) model for project implementation is somewhat confusing as there are a lot of SDLC models with similar strengths and weaknesses. Also, the solutions proffered among the researchers so far have been the  qualitative comparative analysis of SDLC models. Hence, this paper proposes a comparative analysis of SDLC models using quantitative approach in relation to strengths and weaknesses of SDLC models. The study adapted comparative analysis and Software Development Life Cycle (SDLC) models features’ classification using ten characteristics such as project complexity, project size, project duration, project with risk, implementation/initial cost, error discovery, associated cost, risk analysis, maintenance and cost estimation. A quantitative measure that employs online survey using experts in software design and engineering, project management and system analysis was carried out for the evaluation of SDLC models. Purposeful Stratified Random Sampling (SRS) technique was used to gather the data for analysis using XLSTAT after pre-processing, taking into consideration both benefit and cost criteria. The overall performance evaluation showed that Spiral-Model is the best followed by V-Model and lastly Waterfall Model with comparative values of 38.63%, 35.76% and 25.61% respectively. As regards cost estimation, Waterfall Model is the most efficient with value of 41%, then V-Model with 31% and lastly Spiral Model with 28%. V-Model has great error recovery capability with value of 45% which is closely followed by Spiral Model with 37% and lastly Waterfall Model with 18%. The study revealed that, a model with efficient risk assurance does not guarantee efficient cost management. In the future work, more characteristics regarding SDLC models shall be considered.

scholarly journals PERANCANGAN SISTEM INFORMASI PERSEDIAAN OBAT PADA APOTEK RUMAH SAKIT MENGGUNAKAN METODE SPIRAL

2020 ◽  
Vol 8 (1) ◽  
pp. 18-27
Author(s):  
Sentikom 2019
Keyword(s):  
Information System ◽  
Data Collection ◽  
Evaluation Study ◽  
Drug Supply ◽  
Correction Factors ◽  
Inventory Data ◽  
Collection System ◽  
Hospital Pharmacies ◽  
Waterfall Model ◽  
Spiral Model

Pharmacy is a place to sell and sometimes make or mix drugs. A pharmacy is also a place where pharmacists practice the pharmaceutical profession. Many patients complained that the available drugs are incomplete, because the system used is still manual, in this case still using the ledger format to see the available drug supplies. In this case, problems in the drug data collection system and drug inventory data collection are sometimes constrained in determining the stock and the amount of drugs available at the pharmacy. Therefore it is necessary to conduct an evaluation study to collect data on the supply of drugs in hospital pharmacies in order to identify the cause of out of stock and drug supply in hospital pharmacies, determine the amount in stocking of drugs and determine Production Correction Factors for each drug submitted by the manufacturer. To overcome this problem, we need an application or desktop-based system that can evaluate and determine the available inventory at hospital pharmacies. The methodology used in the development of this information system is the Spiral method, which Spiral model is one form of evolution that uses the natural iteration method which is owned by the prototyping model and combined with the systematic aspects developed with the waterfall model. Entities contained in this information system are suppliers, pharmacists, patients and leaders.  

A Quantitative Study of Waterfall and Agile Methodologies With the Perspective of Project Management

2022 ◽  
pp. 111-133
Author(s):  
Kenish Rajesh Halani ◽  
Kavita Jhajharia
Keyword(s):  
Software Engineering ◽  
Software Development ◽  
Extreme Programming ◽  
Prototype Model ◽  
Software Products ◽  
Customer Involvement ◽  
Waterfall Model ◽  
Almost All ◽  
Spiral Model ◽  
Agile Model

Software engineering is used in order to develop larger and complex software products. As software product is needed in almost all the industries, software engineering becomes really important. Software development can be done through various software development life cycle (SDLC) models like waterfall model, agile model, spiral model, prototype model, etc. SDLC is a framework that defines the tasks that to be performed at each step in the development process. Authors are mainly focusing on two models (i.e., waterfall and agile model). Waterfall model is a serial model which follows a strict sequence. Agile methodology can be divided into scrum methodology and extreme programming. Scrum methodology mainly focuses on how to manage tasks in a team-based environment. Scrum consists of three main roles. They are scrum master, product owner, and scrum team. While comparing both the models, the main difference obtained is waterfall does not allow any customer involvement while agile does allow it.

Hostile and Hardened? An Experimental Study on (De-)Sensitization to Violence and Suffering Through Playing Video Games

2008 ◽  
Vol 67 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Frithjof Staude-Müller ◽  
Thomas Bliesener ◽  
Stefanie Luthman
Keyword(s):  
Video Games ◽  
Emotional Responses ◽  
Physiological Measurement ◽  
Different Types ◽  
Downward Spiral ◽  
Spiral Model ◽  
Post Hoc ◽  
Game Violence ◽  
First Person Shooter ◽  
Physiological Reactions

This study tests whether playing violent video games leads to desensitization and increased cardiovascular responding. In a laboratory experiment, 42 men spent 20 min playing either a high- or low-violence version of a “first-person shooter” game. Arousal (heart rate, respiration rate) was measured continuously. After playing the game, emotional responses to aversive and aggressive stimuli - pictures from Lang, Bradley, and Cuthbert’s (1999) International Affective Picture System - were assessed with self-ratings and physiological measurement (skin conductance). Results showed no differences in the judgments of emotional responses to the stimuli. However, different effects of game violence emerged in the physiological reactions to the different types of stimulus material. Participants in the high-violence condition showed significantly weaker reactions (desensitization) to aversive stimuli and reacted significantly more strongly (sensitization) to aggressive cues. No support was found for the arousal hypothesis. Post-hoc analyses are used to discuss possible moderating influences of gaming experience and player’s trait aggressiveness in terms of the General Aggression Model ( Anderson & Bushman, 2001 ) and the Downward Spiral Model ( Slater, Henry, Swaim, & Anderson, 2003 ).

Introduction to the Therapeutic Spiral Model

2002 ◽  
Author(s):  
Patricia Desert ◽  
Karen Drucker ◽  
Colette M. Harrison
Keyword(s):  
Spiral Model

Perfectionism in the transition to university: Comparing diathesis-stress and downward spiral models of depressive symptoms

2019 ◽  
Author(s):  
Shelby L. Levine ◽  
Marina Milyavskaya
Keyword(s):  
Mental Health ◽  
Depressive Symptoms ◽  
Poor Mental Health ◽  
First Year ◽  
First Year Students ◽  
Personal Standards ◽  
Downward Spiral ◽  
Personal Standards Perfectionism ◽  
Spiral Model ◽  
Diathesis Stress Model

Transitioning to university may be especially difficult for students who expect perfection from themselves. Self-critical perfectionism has consistently been linked to poor mental health. The current study compares a diathesis-stress and a downward spiral model, to determine why self-critical perfectionism is detrimental for mental health during this transition. First-year students (N=658) were recruited prior to beginning university in August and contacted again in October, January, and April. Participants completed measures on perfectionism, stress and depressive symptoms. Evidence was found for a downward spiral model with self-critical perfectionism, but not a diathesis-stress model. Students higher in self-critical perfectionism were more likely to experience increased stress and depressive symptoms in a circular and additive manner. Conversely, students higher in personal standards perfectionism experienced less stress and subsequent depressive symptoms. This research provides a theoretical model for why self-critical perfectionism is related to poor mental health outcomes which become sustained over time.

Perancangan dan Pembuatan Situs Reseller Management pada Cargo Fashion

2018 ◽  
Vol 9 (2) ◽  
pp. 82-87
Author(s):  
Enrico Siswanto
Keyword(s):  
Small Business ◽  
Web Based ◽  
Index Terms ◽  
Waterfall Model ◽  
Reasonable Price

Cargo Fashion is a small business that focuses on selling branded garments exports with the best quality and reasonable price. Cargo Fashion still has difficulty in making sales to reseller because still using manual way. Therefore, Cargo Fashion requires a website-based system that can accommodate reseller sales wherever and whenever. Website designed using Waterfall method and built using the PHP and MySQL language for the database. The results of this study is a website that can make sales for resellers and at the same time facilitate the owner of Cargo Fashion in checking the stock of goods and view sales reports. The system was tested to the owner and 100% accepted and meet all the requirements. Index Terms—reseller management, web-based application, waterfall model

Comparative analysis, prospects and development trends of project methodologies

2021 ◽  
pp. 93-104
Author(s):  
A.Yu. Bekmeshov ◽  
◽  
E.V. Kruhmalev ◽  
Keyword(s):  
Project Management ◽  
Comparative Analysis ◽  
Development Trends ◽  
Main Design ◽  
Modern Management ◽  
Project Activity ◽  
The Subject ◽  
Waterfall Model

The article is devoted to the analysis of project approaches in modern management. The object of analysis is project activity, the subject of consideration is project methodologies, their features and promising directions of development. The author identifies the advantages, risks and disadvantages of the main design approaches (Waterfall model, Agile, Scrum, Kanban) the tendencies and trends of development of the project direction in the nearest future. The work will be useful for students who study project management, employees of companies who want to start developing in the project direction, project specialists interested in new trends in the project direction.

Application of Augmented Reality Technology in the SDN 1 Sanur Building Recognition Application

2021 ◽  
Vol 10 (1) ◽  
pp. 45
Author(s):  
I Made Satya Vyasa ◽  
I Gede Arta Wibawa
Keyword(s):  
Elementary School ◽  
Augmented Reality ◽  
Software Development ◽  
Real World ◽  
World View ◽  
School Building ◽  
Application Development ◽  
Building Recognition ◽  
Augmented Reality Technology ◽  
Waterfall Model

This study aims to build an application to introduce the Sumerta 1 public elementary school building. This research uses AR (Augmented Reality) technology, which with this technology makes it possible to display an object in virtual form in a real world view. The method used in this application is marker-based which identifies the pattern of a marker, in the application development itself the model used is the waterfall model. In the process of building this application, using the Vuforia software development kit (SDK) and Unity as the engine.

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