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Unified Modeling Language

Unified Modeling Language
The Unified Modeling Language (UML) is a general-purpose modeling language in the field of software engineering, which is designed to provide a standard way to visualize the design of a system.[1] It was created and developed by Grady Booch, Ivar Jacobson and James Rumbaugh at Rational Software during 1994–95 with further development led by them through 1996.[1] In 1997 it was adopted as a standard by the Object Management Group (OMG), and has been managed by this organization ever since. In 2000 the Unified Modeling Language was also accepted by the International Organization for Standardization (ISO) as an approved ISO standard. Overview[edit] A collage of UML diagrams The Unified Modeling Language (UML) offers a way to visualize a system's architectural blueprints in a diagram (see image), including elements such as:[3] History[edit] History of object-oriented methods and notation Before UML 1.x[edit] UML 1.x[edit] UML 2.x[edit] There are four parts to the UML 2.x specification: Modeling[edit]

PMO The Project Management Body of Knowledge (PMBOK) established by the Project Management Institute (PMI) for training certified Project Management Professionals (PMP) discusses the structure of a projectized organization, a common management structure in organizations in which a major component of the value of the business is based upon the success of individual projects into which investments of resources are made based on their potential value.  The projectized organization structured around programs and portfolios is shown in the figure below. Projectized Organization The PMO at each level also assumes responsibility for the resources that are not allocated, and is also responsible for hiring, developing and evaluating resources within their hierarchy. Optimized Project Management Office Structure – I Figure 1. A Matrix Project Management Organization 1. 2. 3. 4. As mentioned above, my next blog will explain how PMOs will work within “projectized” organizations.

Object-oriented programming Overview[edit] Rather than structure programs as code and data, an object-oriented system integrates the two using the concept of an "object". An object has state (data) and behavior (code). Objects correspond to things found in the real world. So for example, a graphics program will have objects such as circle, square, menu. An online shopping system will have objects such as shopping cart, customer, product. The goals of object-oriented programming are: Increased understanding.Ease of maintenance.Ease of evolution. The overall understanding of the system is increased because the semantic gap—the distance between the language spoken by developers and that spoken by users—is lessened. Object-orientation takes this to the next step. In addition to providing ease of maintenance, encapsulation and information hiding provide ease of evolution as well. History[edit] Fundamental features and concepts [edit] A survey by Deborah J. Benjamin C.

Scope (project management) In project management, the term scope has two distinct uses- Project Scope and Product Scope. Scope involves getting information required to start a project, and the features the product would have that would meet its stakeholders requirements. Project Scope "The work that needs to be accomplished to deliver a product, service, or result with the specified features and functions Product Scope "The features and functions that characterize a product, service, or result Notice that Project Scope is more work-oriented, (the hows,) while Product Scope is more oriented toward functional requirements. If requirements are not completely defined and described and if there is no effective change control in a project, scope or requirement creep may ensue. Scope creep management is important for effective project management. Business scope creep occurs when decisions that are made with reference to a project are designed to solve or meet the requirements and needs of the business.

Les meilleurs livres pour le développement WEB Le livre sur MySQL 5 est vraiment très complet sur ce que peut être ce SGBDR. On pourra y voir les notions fondamentales des bases de données sur ce que peut être une base de données (BDD), les cas d'utilisations, et tout le système afin de permettre, aussi bien au débutant qu'à l'expert désireux de pousser ses connaissances, de pouvoir manipuler cet outil. Ce livre montre aussi toutes les différentes étapes d'installation de MySQL, aussi bien sous Windows que sous Linux, tout en indiquant la structure du système de fichiers d'une façon vraiment simpliste et compréhensible, mais surtout l'administration de A à Z afin d'optimiser le plus possible ses BDD pour un maximum d'efficacité. Pour finir, ce livre est vraiment très bien pour quiconque voulant apprendre et savoir se servir du système de BDD de SUN. Il y a deux très bonnes parties dans ce livre. En résumé, ce livre est très bien conçu exceptée la partie sauvegarde du système qui manque un peu d'explications.

Use case A UMLUse Case Diagram for the interaction of a client (the actor) within a restaurant (the system) In systems engineering, use cases are used at a higher level than within software engineering, often representing missions or stakeholder goals. The detailed requirements may then be captured in Systems Modeling Language (SysML) or as contractual statements. Use Cases are an important requirement technique that have been widely used in modern software engineering since their formal introduction by Ivar Jacobson in 1992. History[edit] In 1986 Ivar Jacobson first formulated textual, structural, and visual modeling techniques for specifying use cases. In 2011 Jacobson published an update to his work, called Use Case 2.0,[3] with the intention of incorporating many of his practical experiences of applying use cases since the original inception of the concept.[4][need quotation to verify] Templates[edit] Martin Fowler[edit] Alistair Cockburn[edit] Fully dressed[edit] Casual[edit] Design scopes[edit] a.

Les meilleurs livres pour le développement WEB Le livre sur MySQL 5 est vraiment très complet sur ce que peut être ce SGBDR. On pourra y voir les notions fondamentales des bases de données sur ce que peut être une base de données (BDD), les cas d'utilisations, et tout le système afin de permettre, aussi bien au débutant qu'à l'expert désireux de pousser ses connaissances, de pouvoir manipuler cet outil. Ce livre montre aussi toutes les différentes étapes d'installation de MySQL, aussi bien sous Windows que sous Linux, tout en indiquant la structure du système de fichiers d'une façon vraiment simpliste et compréhensible, mais surtout l'administration de A à Z afin d'optimiser le plus possible ses BDD pour un maximum d'efficacité. Le plus gros du sujet se trouve justement être la partie algèbre relationnelle, qui montre bien toutes les façons d'interroger, de mettre à jour et de modifier une BDD afin de permettre à l'utilisateur de pouvoir gérer les siennes comme il se doit. Il y a deux très bonnes parties dans ce livre.

Scope Management Plan Template Introduction Scope Management is the collection of processes which ensure that the project includes all the work required to complete it while excluding all work which is not necessary to complete it. The Scope Management Plan details how the project scope will be defined, developed, and verified. It clearly defines who is responsible for managing the projects’ scope and acts as a guide for managing and controlling the scope. Project Scope Management follows a five step process; Collect Requirements, Define Scope, Create WBS, Verify Scope, and Control Scope. Collect Requirements – this first step is the process by which we define and document the requirements needed to meet all project objectives. The Scope Management Plan provides the scope framework for this project. This project is for designing, programming, and testing a new software product which will be used to track the company’s finances and improve various financial processes. Scope Management Approach Roles and Responsibilities

If a programming language was a boat… | CompSci.ca/blog This one is inspired by a recent forum post, that still leaves me in amazement. Hi, Im wondering how i can create a boat in turing and if someone can post a example. This makes no sense, since one doesn’t normally make water vehicles in Turing, the programming language. Though this got me thinking — if a programming language was a boat, what would it be? Turing Turing would definitely be a kayak (thank you for comments). Original photo by naokomc Java Java is a cargo ship. Original photo by cfarivar Perl Perl is a tugboat. Original photo by xeeliz Ruby Ruby is difficult to describe. Original photo by Tony Falcon PHP is a bamboo raft. Original photo by permanently scatterbrained C is a nuclear submarine. Original photo by Ryan C. HTML isn’t really a programming language boat. Original photo by ascendeddaniel There’s a lot more to this, and it’s all up for discussion.

Requirements elicitation In requirements engineering, requirements elicitation is the practice of collecting the requirements of a system from users, customers and other stakeholders. [1] The practice is also sometimes referred to as requirements gathering. The term elicitation is used in books and research to raise the fact that good requirements can not just be collected from the customer, as would be indicated by the name requirements gathering. Requirements elicitation is non-trivial because you can never be sure you get all requirements from the user and customer by just asking them what the system should do. Before requirements can be analyzed, modeled, or specified they must be gathered through an elicitation process. Commonly used elicitation processes are the stakeholder meetings or interviews. Problems[edit] In 1992, Christel and Kang identified problems that indicate the challenges for requirements elicitation:[2] 'Problems of scope'. Requirements quality can be improved through these approaches:[3]

Quel est LE livre que tout développeur doit lire absolument ? Celui qui vous a le plus marqué et inspiré En dépit de la démocratisation de format d'apprentissage plus attrayant (comme les screencasts commerciaux ou gratuits), l'industrie des livres électroniques ou traditionnels en informatique se porte à merveille. Elle représente même un commerce prospère pour de nouvelles maisons d'édition spécialisées qui allient profit et qualité au grand bonheur des développeurs. En développement cependant, le rythme effréné de l'évolution des langages (et des frameworks en particulier) rend certains ouvrages rapidement obsolètes, encombrant les étagères et accumulant de la poussière sans vraiment servir. Il n'est pas rare par exemple d'acquérir un livre encore en vente et de le trouver impraticable dès sa réception en raison de la sortie d'une nouvelle version de la technologie traitée qui casse en grande partie la rétrocompatatibilité. Mais il reste des valeurs sûres, des livres qui ne prennent pas une ride après des années, voire des décennies depuis leur première édition. Et vous ?

Project Charter Template Note: This is our One-Page Project Charter Template. We also have a longer version available if your organization requires a more detailed project charter. Paragraph 1: Formally authorize the project in this section of the Project Charter. This Charter formally authorizes the Payroll Project to develop and implement a new payroll system for use in Jones Consulting Company’s payroll group. A project plan will be developed and submitted to the Project Sponsor for approval. Paragraph 2: Project Scope - State the scope of the project, its deliverable and what business needs, problems or opportunities the project addresses – a market demand, business need, legal requirement, social need, customer request or technological advance. The purpose of the Payroll project is to improve the timeliness and accuracy of payroll operations. Paragraph 3: Identify the Project Manager and give him authority to apply organization resources to the project. The budget for the Payroll project is $420,000.

F.A.Q. Business-Objects Réduire le nombre de lignes retournées par la base de données Lorsque l'utilisateur exécute une requête, BusinessObjects génère le SQL de cette requête à partir des objets et filtres choisis par l'utilisateur, des jointures et contextes définis dans l'univers et aussi des différentes conditions posées par l'utilisateur. Le SQL généré est ensuite soumis à la base de données qui renvoie à BusinessObjects les différentes lignes résultant de la requête. Si la base de données renvoie moins de lignes alors le nombre de données transférées sur le réseau est réduit la source de données de BusinessObjects contient moins de lignes BusinessObjects doit traiter moins de lignes pour la constitution des rapports entraînant une réduction du temps d'exécution. Comment réduire le nombre de lignes retournées par la base données ? En privilégiant les conditions dans les requêtes aux filtres dans les rapports En optimisant les indicateurs dans l'univers Comment optimiser les indicateurs dans l'univers ?

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