diff --git a/hcore/deviceManager/deviceSpecParser.cpp b/hcore/deviceManager/deviceSpecParser.cpp
index c4fcd8b..0470a4f 100644
--- a/hcore/deviceManager/deviceSpecParser.cpp
+++ b/hcore/deviceManager/deviceSpecParser.cpp
@@ -4,43 +4,53 @@
 #include <string>
 #include <vector>
 #include <sstream>
-#include <utility>
-#include <deviceManager/deviceSpecParser.h>
+#include <memory>
+#include <cstdio>
+#include <deviceManager/deviceManager.h>
+#include "deviceSpecp.hh"
+#include "deviceSpecl.hh"
 
-std::vector<std::string> readDeviceFile(const std::string& filename)
+std::string DeviceManager::readDeviceFile(const std::string& filename)
 {
-    std::vector<std::string> deviceStrings;
-std::cerr <<"Here in readDeviceFile" << std::endl;
     std::ifstream file(filename);
-std::cerr <<"Here in readDeviceFile after opening ifstream" << std::endl;
     if (!file.is_open()) {
-        throw std::runtime_error("Could not open device file: " + filename);
+        throw std::runtime_error("Could not open file: " + filename);
     }
 
-    std::string line;
-    while (std::getline(file, line)) {
-        if (!line.empty()) {
-            deviceStrings.push_back(line);
-        }
-    }
+    std::string content(
+        (std::istreambuf_iterator<char>(file)),
+        std::istreambuf_iterator<char>());
 
-    return deviceStrings;
+    return content;
 }
 
-std::vector<std::pair<std::string, std::string>> parseDeviceSpecifiers(
-    const std::vector<std::string>& deviceStrings)
+void DeviceManager::collateAllDeviceSpecs(const OptionParser& options)
 {
-    std::vector<std::pair<std::string, std::string>> deviceSpecifiers;
-    for (const auto& deviceString : deviceStrings) {
-        auto pos = deviceString.find(':');
-        if (pos != std::string::npos) {
-            std::string deviceName = deviceString.substr(0, pos);
-            std::string deviceSpec = deviceString.substr(pos + 1);
-            deviceSpecifiers.emplace_back(deviceName, deviceSpec);
-        } else {
-            throw std::invalid_argument("Invalid device specifier: " + 
-                                        deviceString);
+    allDeviceSpecs = options.deviceSpecs;
+
+    for (const auto& file : options.deviceSpecFiles)
+    {
+        std::string fileContent = readDeviceFile(file);
+        if (!allDeviceSpecs.empty()) {
+            allDeviceSpecs += "||";
         }
+        allDeviceSpecs += fileContent;
+    }
+}
+
+void DeviceManager::parseAllDeviceSpecs(void)
+{
+    std::unique_ptr<FILE, decltype(&fclose)> input(
+        fmemopen((void*)allDeviceSpecs.c_str(),
+        allDeviceSpecs.size(), "r"),
+        &fclose);
+
+    if (!input) {
+        throw std::runtime_error("Failed to open memory as file");
+    }
+
+    deviceSpeclin = input.get();
+    if (deviceSpecpparse()) {
+        throw std::runtime_error("Failed to parse device specs");
     }
-    return deviceSpecifiers;
 }
diff --git a/hcore/include/deviceManager/deviceManager.h b/hcore/include/deviceManager/deviceManager.h
index aed1bbe..f7760d6 100644
--- a/hcore/include/deviceManager/deviceManager.h
+++ b/hcore/include/deviceManager/deviceManager.h
@@ -4,23 +4,55 @@
 #include <vector>
 #include <string>
 #include <opts.h>
+#include <utility>
+#include <iostream>
 
 class DeviceManager
 {
 public:
+    struct SensorDeviceSpec
+    {
+        char sensorType;
+        std::string implexor;
+        std::string api;
+        std::vector<std::string> apiParams;
+        std::string server;
+        std::vector<std::string> serverParams;
+        std::string deviceSelector;
+
+        friend std::ostream& operator<<(
+            std::ostream& os, const SensorDeviceSpec& spec);
+    };
+
+    struct InteroceptorDeviceSpec : public SensorDeviceSpec
+    {
+    };
+
+    struct ExtrospectorDeviceSpec : public SensorDeviceSpec
+    {
+    };
+
     static DeviceManager& getInstance()
     {
         static DeviceManager instance;
         return instance;
     }
 
-    void handleDeviceSpecifiers(const OptionParser& options);
+    std::string readDeviceFile(const std::string& filename);
+    void collateAllDeviceSpecs(const OptionParser& options);
+    void parseAllDeviceSpecs(void);
+    static const std::string printDeviceSpecs();
 
 private:
     DeviceManager() = default;
     ~DeviceManager() = default;
     DeviceManager(const DeviceManager&) = delete;
     DeviceManager& operator=(const DeviceManager&) = delete;
+
+public:
+    std::string allDeviceSpecs;
+    static std::vector<InteroceptorDeviceSpec> interoceptorDeviceSpecs;
+    static std::vector<ExtrospectorDeviceSpec> extrospectorDeviceSpecs;
 };
 
 #endif // DEVICEMANAGER_H
diff --git a/hcore/include/deviceManager/deviceSpecParser.h b/hcore/include/deviceManager/deviceSpecParser.h
deleted file mode 100644
index 1b3a27b..0000000
--- a/hcore/include/deviceManager/deviceSpecParser.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef DEVICESPECPARSER_H
-#define DEVICESPECPARSER_H
-
-#include <string>
-#include <vector>
-#include <utility>
-
-std::vector<std::string> readDeviceFile(const std::string& filename);
-std::vector<std::pair<std::string, std::string>> parseDeviceSpecifiers(
-    const std::vector<std::string>& deviceStrings);
-
-#endif // DEVICESPECPARSER_H