1 Purpose of writing
This requirement specification is the product of the requirement analysis stage, and after the communication in our group, we have a detailed understanding of the summary of the game scoring rules and the user needs. Through this document can clear the future project progress and planning, organization of software development and testing.
2 Project Background
Development name: Volleyball Game scoring rules
Project Author: teacher
Users: Spectators, referees, coaches and athletes who like volleyball
The computer network that implements the software: PC
Projects and other software: System relationships
3. Typical Scenarios
2016 Rio de Janeiro Summer Olympic women's volleyball finals
Professional terminology Interpretation
Fast Track approach
A kind of fast ball in volleyball sports. Generally refers to the setter front of the fast, Radian flat ball at the same time, the spike in the 2 meters away from its jump, swing arm volley setter pull over the ball. According to tactical needs, the use of the net position, early or wrong after hitting. This type of spike because of the speed, Radian flat, the air hitting point more, it is very powerful, and can be used to cover the formation of a variety of collective offensive tactics.
Time difference
One of the offensive tactics of volleyball. The spike to take a run-off, luring the other side to jump block, but his own emergency stop braking, when the other whereabouts, and then suddenly jump from the place to carry out the real buckle. Use this tactic can avoid each other's block, improve the success rate of the spike.
Plug in the offense.
The back of the team inserted into the front row for setter, the ball to 3 players in the front row spike attack form. Generally with 1th number of bits inserted as much. Plugging in the offensive can keep the front row 3 points offensive, make full use of the full length of the net, conducive to break the other side of the line. Tactical changes, can be played cross, Echelon, inclusions, three-dimensional offensive, double fast one swimming and other tactical offensive.
Inclusions attack
A spike player but setter cooperate, fast track approach ball, attract each other blocking. The other hand suddenly inserted a spike between the two men. It can achieve the goal of getting rid of block and breaking out of space, and improve the success rate of spike. Because the spike players such as cork clip in, so called inclusions offensive.
Floating Ball
A kind of serve. Serve with the hard part of the palm root, a short and powerful shot, so that the Force line through the sphere. The ball does not rotate, but the operation of the surrounding air due to the pressure of the ball is different from top to bottom or around the fluttering, often make the service team judge errors, thereby increasing the power of the serve, in the game is widely used. According to the position of the serve, there is a positive start floating serves ball and hook floating serves ball. The ball is issued by the front of the ball, sinking floating ball, high drift ball, flat float ball and so on.
Storm
One of the offensive tactics of volleyball. The spike players use height, bounce advantage, give full play to personal strength and skills, in order to break the opponent's defensive force smash. Athletes are required to have good bounce, strength and spike skills. The level of the storm is one of the important indicators to measure the strength of a team.
Adjust the offense.
One of the tactics of volleyball sports. When the other side to the ball is not in place, the ball's landing point away from the net, can not form a predetermined tactic, by the setter or other players to the ball high radian (adjust the pass), so as to create the opportunity for a spike attack, called "Adjustment attack." This tactical pass has a high radian, and the attacking point is more obvious, making the opponent easy to arm. However, it is still quite powerful if the smash's ability to storm is fully exerted.
Rear attack
One of the tactics of volleyball sports. Organize the rear players to jump or jump forward after the offensive line, vigorously smash. Because of distance from the net, smash ball into the angle of the area is larger, can effectively break through the block, disrupt the regular catch, so that the other side of the defense is not easy to catch. Can be combined with the front-row attack tactics, with the front row offensive as cover, attract block, and then suddenly the ball to the back row, composed of three-dimensional offensive tactics.
Front Cross
A kind of cross attack of volleyball. 4th players inscribed as quick ball or cover to attract each other block, while the 3rd players and 4th players to cross-run buckle half fast ball or half high ball.
Double Quick One swim
One of the tactics of volleyball sports. It is a tactical change of the combination of near-body fast and fast track approach. As a result of the 2 players to buckle fast ball or flat ball, when the other block, another offensive player according to the other block situation, a large roundabout run to the neutral spike, so the name. This attack speed, large amplitude, offensive players and each other for cover, so that the other side is not easy to judge who is the actual spike, to render the empty file. is a proactive and effective offensive method. When used, the need to buckle fast ball players real buckle ability (in order to spike when necessary), the running team can skillfully master the two sides of the large cross-running spike technology.
Follow the defensive
One of the defensive patterns of the volleyball game. Refers to the back of the 6th players in the side of the block to keep up with the protection, to prevent the other lob. When the other side offensive, the party formed a double block, the players do not block back to defend the opponent may be carried out by the small slash spike,1,5th players in the rear maneuver defense. The shape of the fixed position, the task is clear, the central defense tight, against each other spike, lob combination of attack and the side of the ball block play a better effect, but only 2 people in the Back field defense, the gap is larger, the central and both sides of the center and the side of the easy to present empty stalls.
Protection
Terminology of volleyball sports. A defensive action. In the game to take the initiative to make up for their peers in the technical loopholes, and to make offensive and anti-organic link up. It is used in the service, spike, block and rear defense. If the spike, it is possible to be stopped back, when the service and rear defense, it is possible to fly the ball cushion, blocking, the other party may use soft buckle, light hanging. In view of the above situation, attention should be paid to protect, and strive to protect the ball organization offensive. In addition to the protection of the players, the spike and the block members should also be prepared for self-protection.
Processing Ball
Terminology of volleyball sports. The means to be taken in a game, in a forced situation. such as in a transmission to the top of the net can not setter, or the ball into the net, and the third hit away from the ball of the net, etc., was forced to send the ball to the other side of the field. Generally in order to avoid mistakes for the purpose, if possible, the ball should be sent to the other side of the weak defensive areas, or increase the difficulty of catching. In order to weaken its attack, even fight for the organization offensive, change passive as the initiative.
3. Competition rules
The match time is divided into the second half each 15 minutes, the intermission five minutes, the last five minutes starts stopwatch, if in the regular 30 minutes the two sides fights the level, then adds the race three minutes, if still cannot distinguish the victory and defeat, the two sides each player turns the free throw, until one party penalty loses the game to end.
4. About Foul: (1) in the group stage, do not remember the number of individual fouls, and the team to record the total number of fouls, each pair of the second half of the cumulative foul more than 6 times (not including 6 times) is the other side of the penalty.
(2) The semi-finals, in addition to each team accumulated foul, its rules ibid. Also remember personal foul, personal foul 5 times the person was punished. (ask the team to try to wear a different number of ball suits every team in the preliminary round.) )
(3) One game individual cumulative two technical foul is the appearance of penalty
(4) Other: Offensive three seconds, no defense three seconds
(5) Each time the second half of the match is suspended for 1 minutes per pause
The competition consisted of five innings. In the first four innings, the winning party must reach 25 points, or two points higher on that basis. The winning party in the fifth inning only needs to reach 15 points, or two points above each other on this basis.
5. Characteristics of the user
| User type |
Requirements |
| Referee |
Master the rules of competition and scoring rules |
| Audience |
Better understand the scoring rules, can read the game |
| Coaches, athletes |
Master the rules of competition and scoring rules in order to protect their own interests |
I. Assumptions and constraints
Changes in the number of users: different regions of the people running the system at the same time, enter the upper and lower limit of content
Regional changes: Operating systems in different regions, according to the characteristics of the regional network according to the needs of the operation
Two. User's use
The user can operate according to the need, such as the change of the opponent's score, the action of the foul behavior of the two sides during the match.
6. Side effects of the function
The user enters both sides of the match and the score is clicked on that side's scoring button.
Volleyball Scoring Procedure Manual