1. The plaintiff (Counterclaim defendant)'s main claim and the defendant (Counterclaim plaintiff)'s counterclaim are all dismissed.

2. The costs of lawsuit shall be.

A principal lawsuit and a counterclaim shall be deemed simultaneously.

1. Facts of recognition;

A. The Plaintiff is a person who operates a software and web page development company under the trade name of “C”.

The Defendant, a company engaged in the business of manufacturing and selling digital contents and the business of providing online information, was unable to develop D (the reaction web; hereinafter referred to as the “instant web page”) that provides information, such as encryption and price, for “crypt information business,” and had the Plaintiff receive the above development service.

Accordingly, on March 12, 2018, the person in charge of the defendant's side (hereinafter referred to as "defendants") and the person in charge of the plaintiff's side (hereinafter referred to as "party in charge of the plaintiff's side") held a development meeting, and the minutes (Evidence A 3) are as shown in the attached Table.

According to the above meeting minutes, the development plan is divided into the first and the second two lanes, and the part of the "Seouljing" included in the first development scope is the 24-hour standard, and the "actual time data reflection" is included in the second development scope.

around that time, the Plaintiff sent the above minutes to the Defendant, and agreed to send the second development-related documents (Evidence A 3), and the Defendant did not raise any objection.

On March 14, 2018, the Plaintiff prepared a “road map for the second advancement and development of the road (Evidence A4)” and sent it to the Defendant around that time.

This includes the development of monthly arbalestss that can participate in the ICCO (hereinafter “ICP”) and improvement of paints for real-time display of information, and 200 exchange data linkage. The Defendant, “whether the ICP was not developing the ICP in the first development,” and the Plaintiff is included in the first development, but the ICP development applies to the second advancement of ICP.

‘A' (Evidence 5) and no particular reference was made on the improvement of pages for real-time display of data.

B. The instant case.