Requirement Engineering Tool BambooRM

                  Tool Name: BambooRM

Company Name: Bamboo Solutions

Contact Detail URL: http://store.bamboosolutions.com/bamboomainweb/

BambooRM allows project managers and teams to collaborate on projects more easily with one repository of project requirements.

BambooRM simplifies requirements management by integrating use cases, business and functional requirements. Managers, business analysts, consultants, and team leaders can view, manage and trace project requirements online in their browsers, including:

• Creating business requirements for any product or service.
• Defining and associating sub-level business requirements.
• Associating use cases with multiple associated business requirements.
• Associating functional requirements with each business requirement.
• Prioritizing business and functional requirements.
• Tracing the project requirements.
• Creating and printing requirements with easy-to-read summaries.

BambooRM features include:

1. Task Management
2. Versioning
3. Outline View
4. Shared Documents
5. Traceability
6. Move Release to Release
7. Download Pdf/Word documentation  
8. Workflow       

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Posted at 12:49 |  by viralnom

1TB Optical Discs

Sony and Panasonic Announce 1TB Optical Discs 

Sony and Panasonic recently announced from Tokyo, Japan, that 

they have formulated “Archival Discs” that will hold up to 1 TB of 

data. This news may leave Blu-Ray discs in fear of being tossed 

away so soon. The new discs will allow inter-generational 

compatibility between different formats, to ensure that data can be 

read as formats evolve.

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Posted at 05:29 |  by viralnom

Water filter from trees created by scientists

When it comes to purifying water we have been making great strides, however all of this isn’t any good as for 

the majority of time the tech is far out of reach in the parts of the globe where it is needed the most. Many 

people today have water purifiers in their homes and even in their fridges, but filters such as these are not viable 

in some parts of the world as they are not affordable or readily available. However it is in these places that filters 

such as this could improve the quality of many lives and in some cases save lives. Now it seems that a team of 

scientists at MIT could have created just the solution that is needed in developing countries.

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Posted at 05:19 |  by viralnom

Sin Cos Values In Easy Way

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Posted at 12:31 |  by viralnom

Swapping using two variables in C++

#include<iostream.h>
#include<conio.h>
void main()
{
int a,b;
clrscr();


cout<<"\n\nEnter the two no=:";
cin>>a>>b;
cout<<"\na"<<a<<"\nb"<<b;


a=a+b;
b=a-b;
a=a-b;


cout<<"\n\na="<<a<<"\nb="<<b;
getch();
}








Learn Easy way of calculating sin-cos-tan values.

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Posted at 02:42 |  by viralnom

Ethernet Standardization

Ethernet Standardization

Notwithstanding its technical merits, timely standardization was instrumental to the success of Ethernet. It 

required well-coordinated and partly competitive activities in several standardization bodies such as the 

IEEE, ECMA, IEC, and finally ISO.

The "DIX-group" with Gary Robinson (DEC), Phil Arst (Intel), and Bob Printis (Xerox) submitted the so-

called "Blue Book" CSMA/CD specification as a candidate for the LAN specification. Since IEEE 

membership is open to all professionals, including students, the group received countless comments on this 

technology.

Networks

Simple switched Ethernet networks, while a great improvement over repeater-based Ethernet, suffer from 

single points of failure, attacks that trick switches or hosts into sending data to a machine even if it is not 

intended for it, scalability and security issues with regard to broadcast radiation and multicast traffic, and 

bandwidth choke points where a lot of traffic is forced down a single link.

Advanced networking features in switches and routers combat these issues through a number of means 

including spanning-tree protocol to maintain the active links of the network as a tree while allowing physical 

loops for redundancy, port security and protection features such as MAC lock down and broadcast 

radiation filtering, virtual LANs to keep different classes of users separate while using the same physical 

infrastructure, multi-layer switching to route between different classes and link aggregation to add bandwidth 

to overloaded links and to provide some measure of redundancy.

Standards

The vast majority of customer has LAN's that employ Ethernet as the network protocol - a few uses Token 

Ring.  At least 90% of these networks are 10 BASE-T.  The LAN sits behind the router and hub or high-

speed Ethernet switch, and the workstations are connected in a star topology.  Actually, most networks 

have replaced the Cat 3 cables with Cat 5.  Both Cat 3 and 5 cables have 4 un-shielded, twisted pairs of 

copper wires and use the RJ-45 connector, as shown below:

Comparison

Often referred to as Thick net, 10Base5 was the first incarnation of Ethernet technology. The industry used 

thick net in the 1980s until 10Base2 Thin net appeared. Compared to thick net, thin net offered the 

advantage of thinner (5 millimeters vs. 10 millimeters) and more flexible cabling, making it easier to wire 

office buildings for Ethernet.

The most common form of traditional Ethernet, however, is 10Base-T. 10Base-T offers better electrical 

properties than thick net or Thin net, because 10Base-T cables utilize unshielded twisted pair (UTP) wiring 

rather than coaxial. 10Base-T also proved more cost effective than alternatives like fiber optic cabling.

The table below details these traditional Ethernet technologies. Besides the type of cable involved, another 

important aspect of Ethernet networking is the segment length. A segment is a network connection made by 

a single unbroken network cable. Ethernet cables and segments can only span a limited physical distance, 

after which transmissions will likely fail due to line noise, reduced signal strength and other degradation. Per 

the Ethernet specifications, manufacturers of Ethernet equipment must meet the below minimum 

specifications for segment length.

Numerous other lesser-known Ethernet standards exist, including 10Base-FL, 10Base-FB, and 10Base-

FP for fiber optic networks and 10Broad36 for broadband (cable television) cabling.

Gigabit Ethernet

Whereas Fast Ethernet improved traditional Ethernet from 10 Megabit to 100 Megabit speed, Gigabit 

Ethernet boasts the same order-of-magnitude improvement over Fast Ethernet by offering speeds of 1000 

Megabits (1 Gigabit). Gigabit Ethernet was first made to travel over optical and copper cabling, but the 

1000Base-T standard successfully supports it as well. 1000Base-T uses Category 5 cabling similar to 100 

Mbps Ethernet, although achieving gigabit speed requires the use of additional wire pairs.

100BASE-FX:

100BASE-FX is a version of Fast Ethernet over optical fiber. It uses a 1300 nm near-infrared (NIR) light 

wavelength transmitted via two strands of optical fiber, one for receive (RX) and the other for transmit (TX). 

Maximum length is 400 meters (1,310 ft.) for half-duplex connections (to ensure collisions are detected), 

and 2 kilometres (6,600 ft) for full-duplex over multi-mode optical fiber. 100BASE-FX uses the same 

4B5B encoding and NRZI line code that 100BASE-TX does. 100BASE-FX should use SC, ST, LC, 

MTRJ or MIC connectors with SC being the preferred option.

100BASE-FX is not compatible with 10BASE-FL, the 10 MBit/s versions over optical fiber.

100BASE-SX:

100BASE-SX is a version of Fast Ethernet over optical fiber. It uses two strands of multi-mode optical 

fiber for receive and transmit. It is a lower cost alternative to using 100BASE-FX, because it uses short 

wavelength optics which are significantly less expensive than the long wavelength optics used in 100BASE-

FX. 100BASE-SX can operate at distances up to 550 meters (1,800 ft.).

100BASE-SX uses the same wavelength as 10BASE-FL, the 10 Mbit/s versions over optical fiber. Unlike 

100BASE-FX, this allows 100BASE-SX to be backwards-compatible with 10BASE-FL.

Because of the shorter wavelength used (850 nm) and the shorter distance it can support, 100BASE-SX 

uses less expensive optical components (LEDs instead of lasers) which makes it an attractive option for 

those upgrading from 10BASE-FL and those who do not require long distances.

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Posted at 12:49 |  by viralnom

TYPES OF REQUIREMENTS

TYPES OF REQUIREMENTS:

1. User requirements

      The software must provide a means of representing and accessing external files created by other tools.Statements in natural language plus diagrams of the services the system provides and its operational 

constraints.

2. System requirements

             To be used efficiently, all computer software needs certain hardware components or other software resources to be present on a computer. It is a structured document setting out detailed descriptions of the system services and written as a contract between client and contractor.  These pre-requisites are known as (computer) system requirements and are often used as a guideline as opposed to an absolute rule.

3. Functional requirements

           What a system should be able to do, the functions it should perform.Statements of services the system should provide how the system should react to particular inputs and how the system should behave in particular situations.

4. Non-functional requirements

          Constraints on the services or functions offered by the system such as timing constraints, constraints on the development process, standards, etc.

An example of a non-functional requirement is an initialization sequence incorporated into the software that is specific to a given customer.

5. Domain requirements

              Requirements that come from the application domain of the system and that reflect characteristics of that domain. For example: Library system etc.

6. Customer Requirements 

             The customers are those that perform the eight primary functions of systems engineering, with special emphasis on the operator as the key customer.

7. Operational requirements

             Operational requirements will define the basic need and, at a minimum, answer the questions posed.

8. Architectural Requirements

         An architectural requirement is any requirement that is architecturally significant, whether this significance be implicit or explicit. Implicit architectural requirements are those requirements that have particular attributes. For example, any high-risk, high-priority, or low-stability requirement could be considered to be architecturally significant. The product will be localized.

9. Behavioral Requirements

         Behavior which is abides by the Law, Responsibility for the Image of Infineon, Work-Related Standards and Principles.

10. Performance Requirements

          Performance requirements (PR) are necessary for system design and development. If there is no written performance requirements, it just means that they exists in heads of stakeholders, but nobody bothered to write them down and made sure that everybody agrees with them.

11. Design Requirements

         These Design Requirements apply to all plans, processes, and procedures required for compliance with the Design Process.

12. Derived Requirements

          A derived requirement is one that was not explicitly stated by a stakeholder but has been derived as part of the requirements analysis process. A derived requirement is therefore not directly stated by a primary source but is derived by systems engineers from an explicit statement of requirement

13. Product requirements

          Requirements which specify that the delivered product must behave in a particular way, e.g. execution speed, reliability etc.

14. Organizational requirements

       Requirements which are a consequence of organizational policies and procedures, e.g. process standards used, implementation requirements

etc.

15. External requirements

          Requirements which arise from factors which are external to the system and its development process, e.g. interoperability requirements, legislative requirements etc.

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Posted at 11:22 |  by viralnom