string JSON = @"{
  ""db"": ""dev"",
  ""Software"": [
    {
      ""logical_name"": ""CI12"",
      ""description"": {
        ""0"": ""01.01.031"",
        ""1"": ""01.01.059"",
        ""2"": ""01.01.060"",
        ""3"": ""01.01.084"",
        ""4"": ""01.01.110""
      }
    }
  ]
}
";

    public class Software
    {
        public string logical_name;
        public List<one_description> description;
        //public one_description[] description;
        //public Dictionary<string, string> description;
    }

    public class one_description
    {
        public string rownum;
        public string text;
    }

        public Dictionary<string, object> description;




        var settings = new DataContractJsonSerializerSettings();
        settings.UseSimpleDictionaryFormat = true;

        DataContractJsonSerializer jsonFormatter =
        new DataContractJsonSerializer(typeof(****), settings);