The Stakeholders

Stakeholders are those who have interest in the successful implementation of the system (Satzinger, Jackson and Burd 2012). Thus, they are the most important people as information supplier for the analysis and design of the system.
For the system "Open House Route for Multiple Location", the stakeholders include:
1. Customers
2. Agents
3. Managers
4. Corporate partners
5. Navigation providers
6. Map providers

For the system "Restaurant order scheduling", the stakeholders include:
1. All works in the kitchen
2. Managers
3. Staffs from inventory department
4. Food suppliers
5. Works who communicate with customers from  services department
6. Clerks
7. Customers

For the system "ABC Inventory Management System (basic functions)", the stakeholders include:
1. Sale order clerks
2. Marketing, sales, accounting, and financial mangers
3. Manufactures and parts suppliers
4. Warehouse and shipping personnel
5. Customers
6. External shippers
7. Partners
8. Senior executives

Open House Route for Multiple Location

Problem Description: Real estate companies provide an information system for their customers to find for sell houses. However, the system do not provide multiple location route in its map. As open house session comes, customers will visit multiple house at one time. It is so inconvenience for them to input every destinations to their navigators each time. In addition, customers would only approximate a better route since it is not easy to calculate multiple destinations. It is recommend that the existing information system would have the ability to calculate an optimize route for multiple location with the integration of Google Maps.

System Capacities:
1. Use Google Maps service.
2. Show desire location of the existing information system on the map.
3. Calculate and show the route for those desire location.
4. Output route to portable devices.

Business Benefits:
1. Save customers' time in locating multiple houses.
2. customers would easily compare destination of those desire location.
3. customers would make decision quicker.

ABC Inventory Management System (basic functions)

Problem Description: ABC construction equipment LLC believes that constructors do not earn money by owning tools; they make money by using tools as efficiently as possible.  ABC company try to change its business model to help constructors get the job done by leasing tools instead of selling them. The company will provide the best tools at the right time, and quickly finished tool repair, replacement, and upgrade.  To delivery those service, ABC company needs an inventory management system with the basic functions to manage its large arsenals of tools more inexpensively and effectively than it's  customers had.

System Capacities:
1. Minimizing the unnecessary tools and parts in storage while have enough stock to meet the demand.
2. Optimize warehouse inventories, that is, to effectively allocate inventory to different warehouse so that tools can be delivery to constructors quickly.
3. be able to track all tools and parts.

Business Benefits:
1. Cost saving. Since unnecessary tools in the storage is removed, company would save a lot of investment.
2. Increase timely delivery of tools to customers.
3. Increase customer value since there are more type of tools available for their projects so that they can easily scale their projects.

Restaurant Order Scheduing

Problem Description: customers desire good quality and tasted food. However, the quality and taste of food has a negative relationship with its storage time.  The longer the food is storaged the less the quality and taste of the food is. Thus, the quality and taste of the food is the best as it is just finished cooking from the kitchen. However, there is a time constrain for the cooking procedure, and customers' satisfaction will decrease as their waiting time increase. It is hard for a restaurant to hire new chiefs since the size of the kitchen is fixed. As holiday and weekend come, the expected waiting time will be much greater than weekdays.
It is recommend that the new system will be deployed so the schedule of each cooking order is optimized, that is, giving a tolerant waiting time of an order, the chiefs would cook as many orders as possible.

System Capabilities: 
1. Collect order information from the existing order subsystem 
2. Exchange information with the inventory subsystem.
3. schedule orders.
4. inform clients (system who place orders) as orders are not available.

Business Benefits: 
1. Increase customers' satisfaction since waiting time for food is decreased under the schedule system.
2. Decrease waiting time for those who wait for an available table since waiting time for food is decreased that customers would finished their food early.
3. Increase timely response to client who make orders that when an  order is not available due to some unexpected reasons.

Cloud computing are becoming new platforms for enterprise and personal computing as it is better in software delivery and pricing than the traditional platforms. The development of cloud computing technology has speeding up the SaaS since it provides a lower barrier for company with less budget for their information system infrastructure.

SaaS is a method of software delivery that allows data to be accessed from any device with an Internet connection and web browser . In fact, SaaS is an interface liked concept in OOP, which provides a method of function delivery that allows data to be accessed from other classes.  One of the big difference between them are the clients who use it (locally or through network). However, SaaS is not RPC or CORBA architecture (programming language dependent).

Currently, There are two approach for the implementation of SaaS as API, which are RESTful and SOAP. REST uses HTTP/HTTPS  with the standard GET, PUT, POST, and DELETE verbs, in contrast, SOAP can use XML to address  almost any transport to send the request. I personally prefer the RESTful approach since it is much simpler than the SOAP approach.

The following video shows the difference between RESTful and SOAP.

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