second decimal place). Job No. Immediate Predecessors Times (weeks) Expected Time σ2 To Tm Tp A - 2 2 2 B A 1 2 3 C A 2 4 6 D B‚ C 1 3 5 E D 2 3 4 F C‚ D 1 2 3 G E‚ F 2 4 6 H C‚ F 1 1 1 I F‚ G‚ H 2 2 8 2. Construct the network diagram / Determine ES/EF &LS/LF. 3. Determine the critical path(s). 4. Identify activities that have slack times and also indicate how long the slack times are. 5. What is the probability that the completion of the project takes over
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7.7.4 Activity Diagram The progressions of an action chart are operations‚ particularly exercises from the state model. The motivation behind an action chart is to demonstrate the progressions inside an intricate procedure and the sequencing requirements among them. A few exercises run perpetually until an outside occasion interferes with them‚ yet most exercises inevitably finish their work and end themselves [7]. The finishing of a movement is a fruition occasion and normally demonstrates that
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4.6.2 Class Diagram: • In software engineering‚ a class diagram in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system’s classes‚ their attributes‚ operations (or methods)‚ and the relationships among objects. • The class diagram is the main building block of object oriented modeling. • It is used both for general conceptual modeling of the systematic of the application‚ and for detailed modeling translating
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Contents ERD (Entity Relation Diagram) 2 2.1 History of ERD 2 2.2 Building Blocks 2 2.2.2 Relationship 2 2.3. Diagramming Conventions 3 MS ACESS TABLE 5 3.1 Parts of Table 6 3.2 Creating Tables in Access 6 Chapter No 2 ERD (Entity Relation Diagram) 2.1 History of ERD An entity-relationship model (ERM) is an abstract and conceptual representation of data. Entity-relationship modeling is a database modeling method‚ used to produce a type of conceptual schema or semantic data
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Entity Relationship Diagram The bellow diagram is what is refered to as an "Entity Relationship Diagram". Its purpose is to show the relationship between different data in the hotel management program ‚ and the actions that are performed on it. And how data from different objects relate to each other. Legend The Data Entities represent data that will need to be stored on the system‚ in general terms. The Relationships represent actions that will occur to the Data Entities‚ or Weak Entities.
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1. What is an Entity Relationship Diagram? An entity relationship diagram is a graphical representation of an organisation’s data storage requirements. Entity relationship diagrams are abstractions of the real world which simplify the problem to be solved while retaining its essential features. Entity relationship diagrams are used to: identify the data that must be captured‚ stored and retrieved in order to support the business activities performed by an organisation; and identify the data required
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The Entity Relationship Diagram (ERD) depicts a conceptual data model that incorporates some of the important scientific information about the real world. It adopts a natural view that the real world consists of entities and relations (Chen‚ 1976). One objective of the ERD is to create a simple‚ easy to understand and conveniently presented data model consisting of entities‚ attributes‚ relationships and cardinalities. The model serves as tool for database design‚ where the model can facilitate communication
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IT220 COURSE PROJECT You and your fellow team members are employees of a consulting firm called “Network Solutions”. Your firm’s responsibilities include determining the following: • What type of network would best suit each particular customer (e.g.‚ peer-to-peer or client/server)? • Does the customer need a LAN and/or a WAN? • What type of network topology will best suit the customer? • Which cabling media will meet the customer’s needs now and in the near future? • Brands of hardware
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Food Web Diagram Snake (D) Hawk (D) Coyote (D) Insects (C) Scorpion (C) Lizard (C) Quail (C) Mouse (C) Cactus (P) Grass (P) When you are explaining an ecosystem you have producers‚ consumers‚ and decomposers. Producers are the plants and the tress in the ecosystem that provide the energy to the ecosystem. As for the desert the producers are cactus and grass. The consumers of the ecosystem are in three different kinds‚ they are herbivores‚ carnivores‚ and omnivores. Herbivores are the consumers
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Similarities and Differences Comparing is the process of identifying similarities and differences between ideas or things. A variety of strategies can be used when designing comparison activities. We will discuss sentence stems‚ Venn diagrams‚ double bubble diagrams and comparison matrices. Sentence Stem Comparisons This strategy can be used to have the students compare and contrast people‚ characters‚ places‚ events‚ concepts or processes. The comparisons can be general or specific. Marzano’s
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