1. Introduction to Enterprise Systems

2. Objectives
Review the enterprise ecosystem

3. The Enterprise Ecosystem
We have traditional on premises computer systems
SAP / ORACLE / Dynamics
OFBiz
We utilize “the cloud”
Clouds are categorized as public or private
We run various types of services on these clouds
SaaS, PaaS, SOA, Web services

4. A Taxonomy of the Cloud Public clouds Private clouds
Pay as you go model for computing resources
No control of vendor-supplied hardware or performance
Limited to no long term contracts
Private clouds
Always single tenant dedicated to a company

5. Cloud Stack

6. Infrastructure as Service (IaaS) - 1
Physical or virtual computing infrastructure (servers, storage, networking) are outsourced to external companies
We manage the operating system and applications running on these servers
Risks
HIPPA, ITAR, gaming compliance
Benefits
Cost reductions, hardware expansion / contraction flexibility

7. Infrastructure as Service (IaaS) - 2
Amazon EC2 provides hosted servers
We can purchase SAP HANA instances on the EC2
We can purchase Windows instances on the EC2
Microsoft Azure provides hosted Windows and SQL Server instances in the cloud
Rackspace provides similar services

8. Platform as a Service (PaaS) -1
Platform as a Service (PaaS) is a paradigm for delivering operating systems and associated services over the Internet without downloads or installation
We extend Salesforce.com through their application programming interfaces (APIs)
We talk to Facebook through its APIs

9. Software as a Service (SaaS) - 1
SaaS provides access to specific application software through the cloud
Salesforce.com is built on this model
We access the software entirely through the Web
UNR is adopting workday for their financial systems
Apprenda.com

10. Software as a Service (SaaS) -2
Google Apps is akin to a web-based version of Office
Office 365 is office in the cloud

11. The Role of Enterprise Systems
Enterprise Systems (Enterprise Planning Systems) ERPs
Use best practices to implement cross-functional workflow systems for various industries
We try to
Eliminate information silos
Create a real-time or near real-time view of an organization
Establish strong internal controls over data
who can access it and who can change it

12. Common ERP Systems Oracle (JD Edwards, PeopleSoft, Siebel) SAP
Microsoft Dynamics
IBM
Epicor
There are also open source solutions
OFBiz

13. Cost Total cost of ownership All of this leads to an ROI calculation
The cost of the software itself
Varies based on the number of users
The cost for service contracts (10-20%) of the software cost
Implementation, training, maintenance, customization costs
Consultants
All of this leads to an ROI calculation

14. Average Costs By Company Size (Aberdeen Group 2007)

15. Selection Criteria Aberdeen survey of 1,680 companies
Functionality (74%)
Total costs of ownership (52%)
Ease of use (45%)

16. Characteristics of Enterprise Systems
They are some of the most complex systems in use today
They are typically
N-tier systems made up of
clients
an application / business logic layer
a data layer

17. Types of Data Data can be categorized into two types
Master data describes entities used across business transactions (long-term data)
Customers buy goods again and again for example
We buy goods from vendors
Our static organizational structure (configuration)
Transactional data reflects the consequences (outcomes) of executing process steps (transactions) related to master data

18. Types of Master Data Organizational structure
Where we do business (warehouses)
Who we do business with (parties)
Materials
Used in manufacturing
Purchased from vendors and sold to customers (trading goods)

19. Types of Master Data Customers Buy goods from us Vendors
Sell goods to us
Some parties are both customers and vendors

20. Transactional Data
Transactional data records the outcome of a an event – the result of a process
Goods movement
Shipment documents
Transfer of goods between warehouses
Financial documents
Sales (Invoice and payment receipt – accounts receivable)
Purchase (PO to payment – accounts payable)

21. The SAP Ecosystem

22. Introduction to SAP
SAP R3 (System Analysis and Program Development) is a client-server application made up of core business modules and optional add-on modules
A central relational database sits behind the server ( SAP HANA, Oracle, SQL Server, …)

23. SAP R3 Implementation Network Presentation Application Database
Browser Client
PCs, Laptops, etc.
Network
Application Servers
Internet Transaction Server
Web Server
© SAP AG - University Alliances and The Rushmore Group, LLC All rights reserved

24. OFBiz Introduction Short for Open For Business
Licensed under the Apache License version 2.0
You can customize, extend, modify and resell parts on the system

25. OFBiz Architecture
The entity model is based on “The Data Model Resource Book” by Len Silverston
Best practices for designing databases to implement core business functions
The data model is easy to change

26. OFBiz Functional Components
Common data
System entities like units of measure and status code
Geographic boundaries based on ISO standards
Process specific data
Procurement
Materials management
Warehouse
Etc.