what is an ER diagram?
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It's an Entity Relationship diagram. It is a graphical representation of data models and is typically used when designing a database or other information system.
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The Unified Modeling Language (UML) is a standard  language for specifying, visualizing, constructing, and documenting the artifacts of software systems, as well as for business modeling and other non-software systems. The UML represents a collection of best engineering practices that have proven successful in the modeling of large and complex systems.1  The UML is a very important part of developing object oriented software and the software development process.  The UML uses mostly graphical notations to express the design of software projects.  Using the UML helps project teams communicate, explore potential designs, and validate the architectural design of the software.\n\nGoals of UML\nThe primary goals in the design of the UML were:\n\nProvide users with a ready-to-use, expressive visual modeling language so they can develop and exchange meaningful models. \nProvide extensibility and specialization mechanisms to extend the core concepts. \nBe independent of particular programming languages and development processes. \nProvide a formal basis for understanding the modeling language. \nEncourage the growth of the OO tools market. \nSupport higher-level development concepts such as collaborations, frameworks, patterns and components. \nIntegrate best practices. \nWhy Use UML?\nAs the strategic value of software increases for many companies, the industry looks for techniques to automate the production of software and to improve quality and reduce cost and time-to-market. These techniques include component technology, visual programming, patterns and frameworks. Businesses also seek techniques to manage the complexity of systems as they increase in scope and scale. In particular, they recognize the need to solve recurring architectural problems, such as physical distribution, concurrency, replication, security, load balancing and fault tolerance. Additionally, the development for the World Wide Web, while making some things simpler, has exacerbated these architectural problems. The Unified Modeling Language (UML) was designed to respond to these needs.\n\nif u need any further help on UML refer following links...\nhttp://en.wikipedia.org/wiki/Unified_Modeling_Language\n\nhttp://pigseye.kennesaw.edu/~dbraun/csis4650/A&D/UML_tutorial/\n\n\nEnjoy :-)
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What does ER stand for? It's kind of impossible to know what you're talking about otherwise.\n\nEdit: The first site is section 904 specifically, the second the whole Rules of Evidence.
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The Unified Modeling Language (UML) is a non-proprietary, object modeling and specification language used in software engineering. UML includes a standardized graphical notation that may be used to create an abstract model of a system: the UML model.\n\nWhile UML was designed to specify, visualize, construct, and document software-intensive systems, UML is not restricted to modeling software. UML has its strengths at higher, more architectural levels and has been used for modeling hardware (engineering systems) and is commonly used for business process modeling, systems engineering modeling, and representing organizational structure.
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Appendix--the thing at the end of a report with charts, pictures, lists, etc.
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ER\nSurvivor\nLaw and ORder
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A mind map (or mind-map) is a diagram used to represent words and ideas linked to and arranged radially around a central key word or idea. It is used to generate, visualize, structure and classify ideas, and as an aid in study, organization, problem solving, and decision making.
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an organizational chart illustrates the hierarchies within an organization.  The purpose is to illustrate these hierarchies and relationships.
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EMS= environment management system
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Find the book it should have a diagram
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This site offers some basic versions the the main sections of a refrigerator. They are generic but straightforward.\nhttp://www.jimdow.com/jimdow/sales/diagrams/indexdiagrams.htm
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SAP is the market and technology leader in business software solutions, providing comprehensive business software through SAP applications \nSAP DB - The FREE Enterprise Open Source Database\nwhereas\nEnterprise resource planning is a term derived from manufacturing resource planning (MRP II) that followed material requirements planning (MRP). ERP systems typically handle the manufacturing, logistics, distribution, inventory, shipping, invoicing, and accounting for a company. Enterprise Resource Planning or ERP software can aid in the control of many business activities, like sales, delivery, billing, production, inventory management, quality management, and human resources management.
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Hertzsprung-Russell  Diagram.  See the wikipedia article for more info.
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Here's a great diagram: http://www.science.mcmaster.ca/psychology/psych2e03km/psych2e03-2005/lecture3/psych.2e03.lecture3.html
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The network diagram shows the logical sequence of tasks ie the dependencies between the tasks.  It doesn't reflect timing directly, (two boxes one above the other may or may not be executed at the same time) although dates can be included in each box of the network.\n\nSince the network diagram is more like a flowchart, it's a useful communication tool, and it's easier to understand things like why the critical path is where it is.  \n\nA variant that is sometimes used is the time-phased network diagram, where the boxes are arranged along a date scale, normally according to the start date.\n\nA "proper" Gantt chart does not show dependencies, although many people try to superimpose dependencies onto their Gantt charts, often resulting in a unreadable mess.\n\nWhile most PM tools do a reasonable job of drawing a Gantt chart, they often don't do such a good job of drawing a clean looking network diagram.  There are add-ons tools that you can buy to extract data from your application and do a better job of drawing the network.
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Did you mean chart?\n\nHere's the steps:\n\nInsert Menu > Picture > Chart.
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Here are some good references:\n\nUML 2 Class Diagram Guidelines\nhttp://www.agilemodeling.com/style/classDiagram.htm\n\nWikipedia Class Diagrams\nhttp://en.wikipedia.org/wiki/Class_diagram